Модуль:Graph (Bk;rl,&Graph)
Перейти к навигации
Перейти к поиску
 | Этот модуль оценён как альфа-версия. Он готов для тестирований и может быть использован на небольшом количестве страниц для обнаружения проблем. Предложения по изменениям и дополнениям приветствуются. |
Module with helper functions for the Graph extension.
Functions for templates
map
Creates a JSON object for <graph> to display a political map with colored highlights. In the article namespace the template {{Graph:Map}} should be used instead. See its page for use cases.
Maps can be found at Special:Prefixindex/Module:Graph/ (for example WorldMap-iso2.json with country borders) and new maps should also be saved under Module:Graph/.
Parameters:
- basemap: sets the base map. The map definitions must follow the TopoJSON format and if saved in Wikipedia are available for this module. Maps in the default directory Special:Prefixindex/Module:Graph/ like WorldMap-iso2.json should only be referenced by their name while omitting the Modul:Graph/ prefix to allow better portability. The parameter also accepts URLs, e.g. maps from other Wikipedia versions (the link should follow the scheme of
//ru.wikipedia.org/w/index.php?title=mapname&action=raw, i.e. protocol-relative without leading http/s and a trailing action=raw to fetch the raw content only). URLs to maps on external sites should be avoided for the sake of link stability, performance, security, and she be assumed to be blocked by the software or browser anyway. - scale: the scaling factor of the map (default: 100)
- projection: the map projection to use. Supported values are listed at https://github.com/mbostock/d3/wiki/Geo-Projections. The default value is
equirectangularfor an equirectangular projection. - center: map center (corresponds in the map data to both comma-separated values of the
scalefield) - feature: which geographic objects should be displayed (corresponds in the map data to the name of the field under the
objectsfield). The default is valuecountries. - ids of geographic entities: The actual parameter names depend on the base map and the selected feature. For example, for the above mentioned world map the ids are ISO country codes. The values can be either colors or numbers in case the geographic entities should be associated with numeric data:
DE=lightbluemarks Germany in light blue color, andDE=80.6assigns Germany the value 80.6 (population in millions). In the latter case, the actual color depends on the following parameters. - colorScale: the color palette to use for the color scale. The palette must be provided as a comma-separated list of color values. The color values must be given either as
#rgb/#rrggbbor by a CSS color name. Instead of a list, the built-in color palettescategory10andcategory20can also be used. - scaleType: supported values are
linearfor a linear mapping between the data values and the color scale,logfor a log mapping,powfor a power mapping (the exponent can be provided aspow 0.5),sqrtfor a square-root mapping, andquantizefor a quantized scale, i.e. the data is grouped in as many classes as the color palette has colors. - domainMin: lower boundary of the data values, i.e. smaller data values are mapped to the lower boundary
- domainMax: upper boundary of the data values, i.e. larger data values are mapped to the upper boundary
- legend: show color legend (does not work with
quantize) - defaultValue: default value for unused geographic entities. In case the id values are colors the default value is
silver, in case of numbers it is 0. - formatjson: format JSON object for better legibility
chart
Создаёт JSON-объект для отображения диаграммы в тэге <graph>. В пространстве статей стоит использовать шаблон {{Graph:Chart}}. См. примеры на его странице.
Параметры:
- width: ширина диаграммы
- height: высота диаграммы
- type: тип диаграммы:
lineдля линейных[англ.],areaдля диаграмм с областями[англ.],rectдля (вертикальной) столбчатых иpieдля круговых диаграмм. Ряды данных могут быть наложены друг на друга с помощью префиксаstacked, например,stackedarea. - interpolate: метод интерполяции для линейных диаграмм и диаграмм с областями. Рекомендуется использовать
monotoneдля монотонной кубической интерполяции[англ.], другие значения перечислены на https://github.com/vega/vega/wiki/Marks#area. - colors: цветовая палитра диаграммы списком, разделённым запятой. Значения цветов должны указываться в форматах
#rgb/#rrggbb/#aarrggbbили по названию в CSS. В формате#aarrggbbaa— альфа-канал, т. е. FF = 100% прозрачности, 80 = 50% прозрачности и т. п. (Стандартная цветовая палитра —category10.) - xAxisTitle и yAxisTitle: заголовки для осей x и y
- xAxisMin, xAxisMax, yAxisMin и yAxisMax: минимальные и максимальные значения осей x и y (пока не поддерживается для столбчатых диаграмм)
- xAxisFormat и yAxisFormat: меняет форматирование меток у осей. Поддерживаемые значения перечислены на https://github.com/d3/d3-3.x-api-reference/blob/master/Formatting.md#numbers для чисел и https://github.com/d3/d3-3.x-api-reference/blob/master/Time-Formatting.md для дат/времени. Например, формат
%можно использовать для вывода процентов. - xAxisAngle: поворачивает метки на оси x на указанное число градусов. Рекомендуемые значения: -45, +45, -90, +90
- xType и yType: типы данных для значений, например,
integerдля целых чисел,numberдля вещественных чисел,dateдля дат (например, ГГГГ/ММ/ДД) иstringдля порядковых значений. - xGrid=x и yGrid=y: включает сетки по осям.
- x: значения x, разделённые запятой.
- y или y1, y2, …: значения y для одной или нескольких рядов данных соответственно. В круговых диаграммах
y2указывает радиусы соответствующих секторов. - legend: показать легенду (работает для нескольких рядов данных)
- y1Title, y2Title, …: метки соответствующих рядов данных в легенде
- linewidth: ширина линии в линейных диаграммах или расстояние между сегментами круга в круговых диаграммах
- linewidths: different line widths may be defined for each series of data with csv, if set to 0 with "showSymbols" results with points graph, eg.:
linewidths=1, 0, 5, 0.2 - showSymbols: (для линейных диаграмм) показать символ (круг) на каждой точке данных, if number is provided it's size of symbol, default 2.5. may be defined for each series of data with csv, eg.:
showSymbols=1, 2, 3, 4 - symbolsShape: custom shape for symbol: circle, x, square, cross, diamond, triangle_up, triangle_down, triangle_right, triangle_left. May be defined for each series of data with csv, eg.:
symbolsShape= circle, cross, square - symbolsNoFill: if true symbol will be without fill (only stroke),
- symbolsStroke: if "x" symbol is used or option "symbolsNoFill" symbol stroke width, default 2.5
- showValues: выводить значения y текстом. (На текущий момент, поддерживаются (нестековые) столбчатые диаграммы и круговые диаграммы.) Вывод может настраиваться через следующие параметры, заданные как
название1:значение1, название2:значение2:- format: отформатировать вывод в соответствии с https://github.com/d3/d3-3.x-api-reference/blob/master/Formatting.md#numbers для чисел и https://github.com/d3/d3-3.x-api-reference/blob/master/Time-Formatting.md для времени.
- fontcolor: цвет текста
- fontsize: размер текста
- offset: передвинуть текст на заданное расстояние. Для круговых диаграмм с параметром
midangleи столбчатых диаграмм этот параметр также задаёт, внутри или снаружи находится текст. - angle (только в круговых диаграммах): угол текста в градусах или
midangle(по умолчанию) для динамических углов на основании среднего угла сектора круговой диаграммы.
- innerRadius: (для круговых диаграмм) задаёт внутренний радиус для создания «диаграммы-пончика».
- Annotations
- vAnnotatonsLine and hAnnotatonsLine: display vertical or horizontal annotation lines on specific values e.g.
hAnnotatonsLine=4, 5, 6 - vAnnotatonsLabel and vAnnotatonsLabel: display vertical or horizontal annotation labels for lines e.g.
hAnnotationLabel = label1, label2, label3
- vAnnotatonsLine and hAnnotatonsLine: display vertical or horizontal annotation lines on specific values e.g.
- formatjson: отформатировать JSON-объект для лучшей читаемости
Template wrappers
The functions mapWrapper and chartWrapper are wrappers to pass all parameters of the calling template to the respective map and chart functions.
Внимание: При предпросмотре расширение Graph создаёт элемент canvas с векторной графикой. После сохранения генерируется PNG-изображение.
-- ATTENTION: Please edit this code at https://de.wikipedia.org/wiki/Modul:Graph
-- This way all wiki languages can stay in sync. Thank you!
--
-- BUGS: X-Axis label format bug? (xAxisFormat =) https://en.wikipedia.org/wiki/Template_talk:Graph:Chart#X-Axis_label_format_bug?_(xAxisFormat_=)
-- linewidths - doesnt work for two values (eg 0, 1) but work if added third value of both are zeros? Same for marksStroke - probably bug in Graph extension
-- clamp - "clamp" used to avoid marks outside marks area, "clip" should be use instead but not working in Graph extension, see https://phabricator.wikimedia.org/T251709
-- TODO:
-- marks:
-- - line strokeDash + serialization,
-- - symStroke serialization
-- - symbolsNoFill serialization
-- - arbitrary SVG path symbol shape as symbolsShape argument
-- - annotations
-- - vertical / horizontal line at specific values [DONE] 2020-09-01
-- - rectangle shape for x,y data range
-- - graph type serialization (deep rebuild reqired)
-- - second axis (deep rebuild required - assignment of series to one of two axies)
-- Version History (_PLEASE UPDATE when modifying anything_):
-- 2020-09-01 Vertical and horizontal line annotations
-- 2020-08-08 New logic for "nice" for x axis (problem with scale when xType = "date") and grid
-- 2020-06-21 Serializes symbol size
-- transparent symbosls (from line colour) - buggy (incorrect opacity on overlap with line)
-- Linewidth serialized with "linewidths"
-- Variable symbol size and shape of symbols on line charts, default showSymbols = 2, default symbolsShape = circle, symbolsStroke = 0
-- p.chartDebuger(frame) for easy debug and JSON output
-- 2020-06-07 Allow lowercase variables for use with [[Template:Wikidata list]]
-- 2020-05-27 Map: allow specification which feature to display and changing the map center
-- 2020-04-08 Change default showValues.fontcolor from black to persistentGrey
-- 2020-04-06 Logarithmic scale outputs wrong axis labels when "nice"=true
-- 2020-03-11 Allow user-defined scale types, e.g. logarithmic scale
-- 2019-11-08 Apply color-inversion-friendliness to legend title, labels, and xGrid
-- 2019-01-24 Allow comma-separated lists to contain values with commas
-- 2018-10-13 Fix browser color-inversion issues via #54595d per [[mw:Template:Graph:PageViews]]
-- 2018-09-16 Allow disabling the legend for templates
-- 2018-09-10 Allow grid lines
-- 2018-08-26 Use user-defined order for stacked charts
-- 2018-02-11 Force usage of explicitely provided x minimum and/or maximum values, rotation of x labels
-- 2017-08-08 Added showSymbols param to show symbols on line charts
-- 2016-05-16 Added encodeTitleForPath() to help all path-based APIs graphs like pageviews
-- 2016-03-20 Allow omitted data for charts, labels for line charts with string (ordinal) scale at point location
-- 2016-01-28 For maps, always use wikiraw:// protocol. https:// will be disabled soon.
local p = {}
--add debug text to this string with eg. debuglog = debuglog .. "" .. "\n\n" .. "- " .. debug.traceback() .. "result type: ".. type(result) .. " result: \n\n" .. mw.dumpObject(result)
--invoke chartDebuger() to get graph JSON and this string
debuglog = "Debug " .. "\n\n"
local baseMapDirectory = "Module:Graph/"
local persistentGrey = "#54595d"
local shapes = {}
shapes = {
circle = "circle", x= "M-.5,-.5L.5,.5M.5,-.5L-.5,.5" , square = "square",
cross = "cross", diamond = "diamond", triangle_up = "triangle-up",
triangle_down = "triangle-down", triangle_right = "triangle-right",
triangle_left = "triangle-left",
banana = "m -0.5281,0.2880 0.0020,0.0192 m 0,0 c 0.1253,0.0543 0.2118,0.0679 0.3268,0.0252 0.1569,-0.0582 0.3663,-0.1636 0.4607,-0.3407 0.0824,-0.1547 0.1202,-0.2850 0.0838,-0.4794 l 0.0111,-0.1498 -0.0457,-0.0015 c -0.0024,0.3045 -0.1205,0.5674 -0.3357,0.7414 -0.1409,0.1139 -0.3227,0.1693 -0.5031,0.1856 m 0,0 c 0.1804,-0.0163 0.3622,-0.0717 0.5031,-0.1856 0.2152,-0.1739 0.3329,-0.4291 0.3357,-0.7414 l -0.0422,0.0079 c 0,0 -0.0099,0.1111 -0.0227,0.1644 -0.0537,0.1937 -0.1918,0.3355 -0.3349,0.4481 -0.1393,0.1089 -0.2717,0.2072 -0.4326,0.2806 l -0.0062,0.0260"
}
local function numericArray(csv)
if not csv then return end
local list = mw.text.split(csv, "%s*,%s*")
local result = {}
local isInteger = true
for i = 1, #list do
if list[i] == "" then
result[i] = nil
else
result[i] = tonumber(list[i])
if not result[i] then return end
if isInteger then
local int, frac = math.modf(result[i])
isInteger = frac == 0.0
end
end
end
return result, isInteger
end
local function stringArray(text)
if not text then return end
local list = mw.text.split(mw.ustring.gsub(tostring(text), "\\,", "<COMMA>"), ",", true)
for i = 1, #list do
list[i] = mw.ustring.gsub(mw.text.trim(list[i]), "<COMMA>", ",")
end
return list
end
local function isTable(t) return type(t) == "table" end
local function copy(x)
if type(x) == "table" then
local result = {}
for key, value in pairs(x) do result[key] = copy(value) end
return result
else
return x
end
end
function p.map(frame)
-- map path data for geographic objects
local basemap = frame.args.basemap or "Template:Graph:Map/Inner/WorldMap-iso2.json" -- WorldMap name and/or location may vary from wiki to wiki
-- scaling factor
local scale = tonumber(frame.args.scale) or 100
-- map projection, see https://github.com/mbostock/d3/wiki/Geo-Projections
local projection = frame.args.projection or "equirectangular"
-- defaultValue for geographic objects without data
local defaultValue = frame.args.defaultValue or frame.args.defaultvalue
local scaleType = frame.args.scaleType or frame.args.scaletype or "linear"
-- minimaler Wertebereich (nur für numerische Daten)
local domainMin = tonumber(frame.args.domainMin or frame.args.domainmin)
-- maximaler Wertebereich (nur für numerische Daten)
local domainMax = tonumber(frame.args.domainMax or frame.args.domainmax)
-- Farbwerte der Farbskala (nur für numerische Daten)
local colorScale = frame.args.colorScale or frame.args.colorscale or "category10"
-- show legend
local legend = frame.args.legend
-- the map feature to display
local feature = frame.args.feature or "countries"
-- map center
local center = numericArray(frame.args.center)
-- format JSON output
local formatJson = frame.args.formatjson
-- map data are key-value pairs: keys are non-lowercase strings (ideally ISO codes) which need to match the "id" values of the map path data
local values = {}
local isNumbers = nil
for name, value in pairs(frame.args) do
if mw.ustring.find(name, "^[^%l]+$") and value and value ~= "" then
if isNumbers == nil then isNumbers = tonumber(value) end
local data = { id = name, v = value }
if isNumbers then data.v = tonumber(data.v) end
table.insert(values, data)
end
end
if not defaultValue then
if isNumbers then defaultValue = 0 else defaultValue = "silver" end
end
-- create highlight scale
local scales
if isNumbers then
if colorScale then colorScale = string.lower(colorScale) end
if colorScale == "category10" or colorScale == "category20" then else colorScale = stringArray(colorScale) end
scales =
{
{
name = "color",
type = scaleType,
domain = { data = "highlights", field = "v" },
range = colorScale,
nice = true,
zero = false
}
}
if domainMin then scales[1].domainMin = domainMin end
if domainMax then scales[1].domainMax = domainMax end
local exponent = string.match(scaleType, "pow%s+(%d+%.?%d+)") -- check for exponent
if exponent then
scales[1].type = "pow"
scales[1].exponent = exponent
end
end
-- create legend
if legend then
legend =
{
{
fill = "color",
offset = 120,
properties =
{
title = { fontSize = { value = 14 } },
labels = { fontSize = { value = 12 } },
legend =
{
stroke = { value = "silver" },
strokeWidth = { value = 1.5 }
}
}
}
}
end
-- get map url
local basemapUrl
if (string.sub(basemap, 1, 10) == "wikiraw://") then
basemapUrl = basemap
else
-- if not a (supported) url look for a colon as namespace separator. If none prepend default map directory name.
if not string.find(basemap, ":") then basemap = baseMapDirectory .. basemap end
basemapUrl = "wikiraw:///" .. mw.uri.encode(mw.title.new(basemap).prefixedText, "PATH")
end
local output =
{
version = 2,
width = 1, -- generic value as output size depends solely on map size and scaling factor
height = 1, -- ditto
data =
{
{
-- data source for the highlights
name = "highlights",
values = values
},
{
-- data source for map paths data
name = feature,
url = basemapUrl,
format = { type = "topojson", feature = feature },
transform =
{
{
-- geographic transformation ("geopath") of map paths data
type = "geopath",
value = "data", -- data source
scale = scale,
translate = { 0, 0 },
center = center,
projection = projection
},
{
-- join ("zip") of mutiple data source: here map paths data and highlights
type = "lookup",
keys = { "id" }, -- key for map paths data
on = "highlights", -- name of highlight data source
onKey = "id", -- key for highlight data source
as = { "zipped" }, -- name of resulting table
default = { v = defaultValue } -- default value for geographic objects that could not be joined
}
}
}
},
marks =
{
-- output markings (map paths and highlights)
{
type = "path",
from = { data = feature },
properties =
{
enter = { path = { field = "layout_path" } },
update = { fill = { field = "zipped.v" } },
hover = { fill = { value = "darkgrey" } }
}
}
},
legends = legend
}
if (scales) then
output.scales = scales
output.marks[1].properties.update.fill.scale = "color"
end
local flags
if formatJson then flags = mw.text.JSON_PRETTY end
return mw.text.jsonEncode(output, flags)
end
local function deserializeXData(serializedX, xType, xMin, xMax)
local x
if not xType or xType == "integer" or xType == "number" then
local isInteger
x, isInteger = numericArray(serializedX)
if x then
xMin = tonumber(xMin)
xMax = tonumber(xMax)
if not xType then
if isInteger then xType = "integer" else xType = "number" end
end
else
if xType then error("Numbers expected for parameter 'x'") end
end
end
if not x then
x = stringArray(serializedX)
if not xType then xType = "string" end
end
return x, xType, xMin, xMax
end
local function deserializeYData(serializedYs, yType, yMin, yMax)
local y = {}
local areAllInteger = true
for yNum, value in pairs(serializedYs) do
local yValues
if not yType or yType == "integer" or yType == "number" then
local isInteger
yValues, isInteger = numericArray(value)
if yValues then
areAllInteger = areAllInteger and isInteger
else
if yType then
error("Numbers expected for parameter '" .. name .. "'")
else
return deserializeYData(serializedYs, "string", yMin, yMax)
end
end
end
if not yValues then yValues = stringArray(value) end
y[yNum] = yValues
end
if not yType then
if areAllInteger then yType = "integer" else yType = "number" end
end
if yType == "integer" or yType == "number" then
yMin = tonumber(yMin)
yMax = tonumber(yMax)
end
return y, yType, yMin, yMax
end
local function convertXYToManySeries(x, y, xType, yType, seriesTitles)
local data =
{
name = "chart",
format =
{
type = "json",
parse = { x = xType, y = yType }
},
values = {}
}
for i = 1, #y do
local yLen = table.maxn(y[i])
for j = 1, #x do
if j <= yLen and y[i][j] then table.insert(data.values, { series = seriesTitles[i], x = x[j], y = y[i][j] }) end
end
end
return data
end
local function convertXYToSingleSeries(x, y, xType, yType, yNames)
local data = { name = "chart", format = { type = "json", parse = { x = xType } }, values = {} }
for j = 1, #y do data.format.parse[yNames[j]] = yType end
for i = 1, #x do
local item = { x = x[i] }
for j = 1, #y do item[yNames[j]] = y[j][i] end
table.insert(data.values, item)
end
return data
end
local function getXScale(chartType, stacked, xMin, xMax, xType, xScaleType)
if chartType == "pie" then return end
local xscale =
{
name = "x",
range = "width",
zero = false, -- do not include zero value
domain = { data = "chart", field = "x" }
}
if xScaleType then xscale.type = xScaleType else xscale.type = "linear" end
if xMin then xscale.domainMin = xMin end
if xMax then xscale.domainMax = xMax end
if xMin or xMax then
xscale.clamp = true
xscale.nice = false
end
if chartType == "rect" then
xscale.type = "ordinal"
if not stacked then xscale.padding = 0.2 end -- pad each bar group
else
if xType == "date" then
xscale.type = "time"
elseif xType == "string" then
xscale.type = "ordinal"
xscale.points = true
end
end
if xType and xType ~= "date" and xScaleType ~= "log" then xscale.nice = true end -- force round numbers for x scale, but "log" and "date" scale outputs a wrong "nice" scale
return xscale
end
local function getYScale(chartType, stacked, yMin, yMax, yType, yScaleType)
if chartType == "pie" then return end
local yscale =
{
name = "y",
--type = yScaleType or "linear",
range = "height",
-- area charts have the lower boundary of their filling at y=0 (see marks.properties.enter.y2), therefore these need to start at zero
zero = chartType ~= "line",
nice = yScaleType ~= "log" -- force round numbers for y scale, but log scale outputs a wrong "nice" scale
}
if yScaleType then yscale.type = yScaleType else yscale.type = "linear" end
if yMin then yscale.domainMin = yMin end
if yMax then yscale.domainMax = yMax end
if yMin or yMax then yscale.clamp = true end
if yType == "date" then yscale.type = "time"
elseif yType == "string" then yscale.type = "ordinal" end
if stacked then
yscale.domain = { data = "stats", field = "sum_y" }
else
yscale.domain = { data = "chart", field = "y" }
end
return yscale
end
local function getColorScale(colors, chartType, xCount, yCount)
if not colors then
if (chartType == "pie" and xCount > 10) or yCount > 10 then colors = "category20" else colors = "category10" end
end
local colorScale =
{
name = "color",
type = "ordinal",
range = colors,
domain = { data = "chart", field = "series" }
}
if chartType == "pie" then colorScale.domain.field = "x" end
return colorScale
end
local function getAlphaColorScale(colors, y)
local alphaScale
-- if there is at least one color in the format "#aarrggbb", create a transparency (alpha) scale
if isTable(colors) then
local alphas = {}
local hasAlpha = false
for i = 1, #colors do
local a, rgb = string.match(colors[i], "#(%x%x)(%x%x%x%x%x%x)")
if a then
hasAlpha = true
alphas[i] = tostring(tonumber(a, 16) / 255.0)
colors[i] = "#" .. rgb
else
alphas[i] = "1"
end
end
for i = #colors + 1, #y do alphas[i] = "1" end
if hasAlpha then alphaScale = { name = "transparency", type = "ordinal", range = alphas } end
end
return alphaScale
end
local function getLineScale(linewidths, chartType)
local lineScale = {}
lineScale =
{
name = "line",
type = "ordinal",
range = linewidths,
domain = { data = "chart", field = "series" }
}
return lineScale
end
local function getSymSizeScale(symSize)
local SymSizeScale = {}
SymSizeScale =
{
name = "symSize",
type = "ordinal",
range = symSize,
domain = { data = "chart", field = "series" }
}
return SymSizeScale
end
local function getSymShapeScale(symShape)
local SymShapeScale = {}
SymShapeScale =
{
name = "symShape",
type = "ordinal",
range = symShape,
domain = { data = "chart", field = "series" }
}
return SymShapeScale
end
local function getValueScale(fieldName, min, max, type)
local valueScale =
{
name = fieldName,
type = type or "linear",
domain = { data = "chart", field = fieldName },
range = { min, max }
}
return valueScale
end
local function addInteractionToChartVisualisation(plotMarks, colorField, dataField)
-- initial setup
if not plotMarks.properties.enter then plotMarks.properties.enter = {} end
plotMarks.properties.enter[colorField] = { scale = "color", field = dataField }
-- action when cursor is over plot mark: highlight
if not plotMarks.properties.hover then plotMarks.properties.hover = {} end
plotMarks.properties.hover[colorField] = { value = "red" }
-- action when cursor leaves plot mark: reset to initial setup
if not plotMarks.properties.update then plotMarks.properties.update = {} end
plotMarks.properties.update[colorField] = { scale = "color", field = dataField }
end
local function getPieChartVisualisation(yCount, innerRadius, outerRadius, linewidth, radiusScale)
local chartvis =
{
type = "arc",
from = { data = "chart", transform = { { field = "y", type = "pie" } } },
properties =
{
enter = {
innerRadius = { value = innerRadius },
outerRadius = { },
startAngle = { field = "layout_start" },
endAngle = { field = "layout_end" },
stroke = { value = "white" },
strokeWidth = { value = linewidth or 1 }
}
}
}
if radiusScale then
chartvis.properties.enter.outerRadius.scale = radiusScale.name
chartvis.properties.enter.outerRadius.field = radiusScale.domain.field
else
chartvis.properties.enter.outerRadius.value = outerRadius
end
addInteractionToChartVisualisation(chartvis, "fill", "x")
return chartvis
end
local function getChartVisualisation(chartType, stacked, colorField, yCount, innerRadius, outerRadius, linewidth, alphaScale, radiusScale, lineScale, interpolate)
if chartType == "pie" then return getPieChartVisualisation(yCount, innerRadius, outerRadius, linewidth, radiusScale) end
local chartvis =
{
type = chartType,
properties =
{
-- chart creation event handler
enter =
{
x = { scale = "x", field = "x" },
y = { scale = "y", field = "y" }
}
}
}
addInteractionToChartVisualisation(chartvis, colorField, "series")
if colorField == "stroke" then
chartvis.properties.enter.strokeWidth = { value = linewidth or 2.5 }
if type(lineScale) =="table" then
chartvis.properties.enter.strokeWidth.value = nil
chartvis.properties.enter.strokeWidth =
{
scale = "line",
field= "series"
}
end
end
if interpolate then chartvis.properties.enter.interpolate = { value = interpolate } end
if alphaScale then chartvis.properties.update[colorField .. "Opacity"] = { scale = "transparency" } end
-- for bars and area charts set the lower bound of their areas
if chartType == "rect" or chartType == "area" then
if stacked then
-- for stacked charts this lower bound is the end of the last stacking element
chartvis.properties.enter.y2 = { scale = "y", field = "layout_end" }
else
--[[
for non-stacking charts the lower bound is y=0
TODO: "yscale.zero" is currently set to "true" for this case, but "false" for all other cases.
For the similar behavior "y2" should actually be set to where y axis crosses the x axis,
if there are only positive or negative values in the data ]]
chartvis.properties.enter.y2 = { scale = "y", value = 0 }
end
end
-- for bar charts ...
if chartType == "rect" then
-- set 1 pixel width between the bars
chartvis.properties.enter.width = { scale = "x", band = true, offset = -1 }
-- for multiple series the bar marking needs to use the "inner" series scale, whereas the "outer" x scale is used by the grouping
if not stacked and yCount > 1 then
chartvis.properties.enter.x.scale = "series"
chartvis.properties.enter.x.field = "series"
chartvis.properties.enter.width.scale = "series"
end
end
-- stacked charts have their own (stacked) y values
if stacked then chartvis.properties.enter.y.field = "layout_start" end
-- if there are multiple series group these together
if yCount == 1 then
chartvis.from = { data = "chart" }
else
-- if there are multiple series, connect colors to series
chartvis.properties.update[colorField].field = "series"
if alphaScale then chartvis.properties.update[colorField .. "Opacity"].field = "series" end
-- if there are multiple series, connect linewidths to series
if chartype == "line" then
chartvis.properties.update["strokeWidth"].field = "series"
end
-- apply a grouping (facetting) transformation
chartvis =
{
type = "group",
marks = { chartvis },
from =
{
data = "chart",
transform =
{
{
type = "facet",
groupby = { "series" }
}
}
}
}
-- for stacked charts apply a stacking transformation
if stacked then
table.insert(chartvis.from.transform, 1, { type = "stack", groupby = { "x" }, sortby = { "-_id" }, field = "y" } )
else
-- for bar charts the series are side-by-side grouped by x
if chartType == "rect" then
-- for bar charts with multiple series: each serie is grouped by the x value, therefore the series need their own scale within each x group
local groupScale =
{
name = "series",
type = "ordinal",
range = "width",
domain = { field = "series" }
}
chartvis.from.transform[1].groupby = "x"
chartvis.scales = { groupScale }
chartvis.properties = { enter = { x = { field = "key", scale = "x" }, width = { scale = "x", band = true } } }
end
end
end
return chartvis
end
local function getTextMarks(chartvis, chartType, outerRadius, scales, radiusScale, yType, showValues)
local properties
if chartType == "rect" then
properties =
{
x = { scale = chartvis.properties.enter.x.scale, field = chartvis.properties.enter.x.field },
y = { scale = chartvis.properties.enter.y.scale, field = chartvis.properties.enter.y.field, offset = -(tonumber(showValues.offset) or -4) },
--dx = { scale = chartvis.properties.enter.x.scale, band = true, mult = 0.5 }, -- for horizontal text
dy = { scale = chartvis.properties.enter.x.scale, band = true, mult = 0.5 }, -- for vertical text
align = { },
baseline = { value = "middle" },
fill = { },
angle = { value = -90 },
fontSize = { value = tonumber(showValues.fontsize) or 11 }
}
if properties.y.offset >= 0 then
properties.align.value = "right"
properties.fill.value = showValues.fontcolor or "white"
else
properties.align.value = "left"
properties.fill.value = showValues.fontcolor or persistentGrey
end
elseif chartType == "pie" then
properties =
{
x = { group = "width", mult = 0.5 },
y = { group = "height", mult = 0.5 },
radius = { offset = tonumber(showValues.offset) or -4 },
theta = { field = "layout_mid" },
fill = { value = showValues.fontcolor or persistentGrey },
baseline = { },
angle = { },
fontSize = { value = tonumber(showValues.fontsize) or math.ceil(outerRadius / 10) }
}
if (showValues.angle or "midangle") == "midangle" then
properties.align = { value = "center" }
properties.angle = { field = "layout_mid", mult = 180.0 / math.pi }
if properties.radius.offset >= 0 then
properties.baseline.value = "bottom"
else
if not showValues.fontcolor then properties.fill.value = "white" end
properties.baseline.value = "top"
end
elseif tonumber(showValues.angle) then
-- qunatize scale for aligning text left on right half-circle and right on left half-circle
local alignScale = { name = "align", type = "quantize", domainMin = 0.0, domainMax = math.pi * 2, range = { "left", "right" } }
table.insert(scales, alignScale)
properties.align = { scale = alignScale.name, field = "layout_mid" }
properties.angle = { value = tonumber(showValues.angle) }
properties.baseline.value = "middle"
if not tonumber(showValues.offset) then properties.radius.offset = 4 end
end
if radiusScale then
properties.radius.scale = radiusScale.name
properties.radius.field = radiusScale.domain.field
else
properties.radius.value = outerRadius
end
end
if properties then
if showValues.format then
local template = "datum.y"
if yType == "integer" or yType == "number" then template = template .. "|number:'" .. showValues.format .. "'"
elseif yType == "date" then template = template .. "|time:" .. showValues.format .. "'"
end
properties.text = { template = "{{" .. template .. "}}" }
else
properties.text = { field = "y" }
end
local textmarks =
{
type = "text",
properties =
{
enter = properties
}
}
if chartvis.from then textmarks.from = copy(chartvis.from) end
return textmarks
end
end
local function getSymbolMarks(chartvis, symSize, symShape, symStroke, noFill, alphaScale)
local symbolmarks
symbolmarks =
{
type = "symbol",
properties =
{
enter =
{
x = { scale = "x", field = "x" },
y = { scale = "y", field = "y" },
strokeWidth = { value = symStroke },
stroke = { scale = "color", field = "series" },
fill = { scale = "color", field = "series" },
}
}
}
if type(symShape) == "string" then
symbolmarks.properties.enter.shape = { value = symShape }
end
if type(symShape) == "table" then
symbolmarks.properties.enter.shape = { scale = "symShape", field = "series" }
end
if type(symSize) == "number" then
symbolmarks.properties.enter.size = { value = symSize }
end
if type(symSize) == "table" then
symbolmarks.properties.enter.size = { scale = "symSize", field = "series" }
end
if noFill then
symbolmarks.properties.enter.fill = nil
end
if alphaScale then
symbolmarks.properties.enter.fillOpacity =
{ scale = "transparency", field = "series" }
symbolmarks.properties.enter.strokeOpacity =
{ scale = "transparency", field = "series" }
end
if chartvis.from then symbolmarks.from = copy(chartvis.from) end
return symbolmarks
end
local function getAnnoMarks(chartvis, stroke, fill, opacity)
local vannolines, hannolines, vannoLabels, vannoLabels
vannolines =
{
type = "rule",
from = { data = "v_anno" },
properties =
{
update =
{
x = { scale = "x", field = "x" },
y = { value = 0 },
y2 = { field = { group = "height" } },
strokeWidth = { value = stroke },
stroke = { value = persistentGrey },
opacity = { value = opacity }
}
}
}
vannolabels =
{
type = "text",
from = { data = "v_anno" },
properties =
{
update =
{
x = { scale = "x", field = "x", offset = 3 },
y = { field = { group = "height" }, offset = -3 },
text = { field = "label" },
baseline = { value = "top" },
angle = { value = -90 },
fill = { value = persistentGrey },
opacity = { value = opacity }
}
}
}
hannolines =
{
type = "rule",
from = { data = "h_anno" },
properties =
{
update =
{
y = { scale = "y", field = "y" },
x = { value = 0 },
x2 = { field = { group = "width" } },
strokeWidth = { value = stroke },
stroke = { value = persistentGrey },
opacity = { value = opacity }
}
}
}
hannolabels =
{
type = "text",
from = { data = "h_anno" },
properties =
{
update =
{
y = { scale = "y", field = "y", offset = 3 },
x = { value = 0 , offset = 3 },
text = { field = "label" },
baseline = { value = "top" },
angle = { value = 0 },
fill = { value = persistentGrey },
opacity = { value = opacity }
}
}
}
return vannolines, vannolabels, hannolines, hannolabels
end
local function getAxes(xTitle, xAxisFormat, xAxisAngle, xType, xGrid, yTitle, yAxisFormat, yType, yGrid, chartType)
local xAxis, yAxis
if chartType ~= "pie" then
if xType == "integer" and not xAxisFormat then xAxisFormat = "d" end
xAxis =
{
type = "x",
scale = "x",
title = xTitle,
format = xAxisFormat,
grid = xGrid
}
if xAxisAngle then
local xAxisAlign
if xAxisAngle < 0 then xAxisAlign = "right" else xAxisAlign = "left" end
xAxis.properties =
{
title =
{
fill = { value = persistentGrey }
},
labels =
{
angle = { value = xAxisAngle },
align = { value = xAxisAlign },
fill = { value = persistentGrey }
},
ticks =
{
stroke = { value = persistentGrey }
},
axis =
{
stroke = { value = persistentGrey },
strokeWidth = { value = 2 }
},
grid =
{
stroke = { value = persistentGrey }
}
}
else
xAxis.properties =
{
title =
{
fill = { value = persistentGrey }
},
labels =
{
fill = { value = persistentGrey }
},
ticks =
{
stroke = { value = persistentGrey }
},
axis =
{
stroke = { value = persistentGrey },
strokeWidth = { value = 2 }
},
grid =
{
stroke = { value = persistentGrey }
}
}
end
if yType == "integer" and not yAxisFormat then yAxisFormat = "d" end
yAxis =
{
type = "y",
scale = "y",
title = yTitle,
format = yAxisFormat,
grid = yGrid
}
yAxis.properties =
{
title =
{
fill = { value = persistentGrey }
},
labels =
{
fill = { value = persistentGrey }
},
ticks =
{
stroke = { value = persistentGrey }
},
axis =
{
stroke = { value = persistentGrey },
strokeWidth = { value = 2 }
},
grid =
{
stroke = { value = persistentGrey }
}
}
end
return xAxis, yAxis
end
local function getLegend(legendTitle, chartType, outerRadius)
local legend =
{
fill = "color",
stroke = "color",
title = legendTitle,
}
legend.properties = {
title = {
fill = { value = persistentGrey },
},
labels = {
fill = { value = persistentGrey },
},
}
if chartType == "pie" then
legend.properties = {
-- move legend from center position to top
legend = {
y = { value = -outerRadius },
},
title = {
fill = { value = persistentGrey }
},
labels = {
fill = { value = persistentGrey },
},
}
end
return legend
end
function p.chart(frame)
-- chart width and height
local graphwidth = tonumber(frame.args.width) or 200
local graphheight = tonumber(frame.args.height) or 200
-- chart type
local chartType = frame.args.type or "line"
-- interpolation mode for line and area charts: linear, step-before, step-after, basis, basis-open, basis-closed (type=line only), bundle (type=line only), cardinal, cardinal-open, cardinal-closed (type=line only), monotone
local interpolate = frame.args.interpolate
-- mark colors (if no colors are given, the default 10 color palette is used)
local colorString = frame.args.colors
if colorString then colorString = string.lower(colorString) end
local colors = stringArray(colorString)
-- for line charts, the thickness of the line; for pie charts the gap between each slice
local linewidth = tonumber(frame.args.linewidth)
local linewidthsString = frame.args.linewidths
local linewidths
if linewidthsString and linewidthsString ~= "" then linewidths = numericArray(linewidthsString) or false end
-- x and y axis caption
local xTitle = frame.args.xAxisTitle or frame.args.xaxistitle
local yTitle = frame.args.yAxisTitle or frame.args.yaxistitle
-- x and y value types
local xType = frame.args.xType or frame.args.xtype
local yType = frame.args.yType or frame.args.ytype
-- override x and y axis minimum and maximum
local xMin = frame.args.xAxisMin or frame.args.xaxismin
local xMax = frame.args.xAxisMax or frame.args.xaxismax
local yMin = frame.args.yAxisMin or frame.args.yaxismin
local yMax = frame.args.yAxisMax or frame.args.yaxismax
-- override x and y axis label formatting
local xAxisFormat = frame.args.xAxisFormat or frame.args.xaxisformat
local yAxisFormat = frame.args.yAxisFormat or frame.args.yaxisformat
local xAxisAngle = tonumber(frame.args.xAxisAngle) or tonumber(frame.args.xaxisangle)
-- x and y scale types
local xScaleType = frame.args.xScaleType or frame.args.xscaletype
local yScaleType = frame.args.yScaleType or frame.args.yscaletype
-- log scale require minimum > 0, for now it's no possible to plot negative values on log - TODO see: https://www.mathworks.com/matlabcentral/answers/1792-log-scale-graphic-with-negative-value
-- if xScaleType == "log" then
-- if (not xMin or tonumber(xMin) <= 0) then xMin = 0.1 end
-- if not xType then xType = "number" end
-- end
-- if yScaleType == "log" then
-- if (not yMin or tonumber(yMin) <= 0) then yMin = 0.1 end
-- if not yType then yType = "number" end
-- end
-- show grid
local xGrid = frame.args.xGrid or frame.args.xgrid or false
local yGrid = frame.args.yGrid or frame.args.ygrid or false
-- for line chart, show a symbol at each data point
local showSymbols = frame.args.showSymbols or frame.args.showsymbols
local symbolsShape = frame.args.symbolsShape or frame.args.symbolsshape
local symbolsNoFill = frame.args.symbolsNoFill or frame.args.symbolsnofill
local symbolsStroke = tonumber(frame.args.symbolsStroke or frame.args.symbolsstroke)
-- show legend with given title
local legendTitle = frame.args.legend
-- show values as text
local showValues = frame.args.showValues or frame.args.showvalues
-- show v- and h-line annotations
local v_annoLineString = frame.args.vAnnotatonsLine or frame.args.vannotatonsline
local h_annoLineString = frame.args.hAnnotatonsLine or frame.args.hannotatonsline
local v_annoLabelString = frame.args.vAnnotatonsLabel or frame.args.vannotatonslabel
local h_annoLabelString = frame.args.hAnnotatonsLabel or frame.args.hannotatonslabel
-- decode annotations cvs
local v_annoLine, v_annoLabel, h_annoLine, h_annoLabel
if v_annoLineString and v_annoLineString ~= "" then
if xType == "number" or xType == "integer" then
v_annoLine = numericArray(v_annoLineString)
else
v_annoLine = stringArray(v_annoLineString)
end
v_annoLabel = stringArray(v_annoLabelString)
end
if h_annoLineString and h_annoLineString ~= "" then
if yType == "number" or yType == "integer" then
h_annoLine = numericArray(h_annoLineString)
else
h_annoLine = stringArray(h_annoLineString)
end
h_annoLabel = stringArray(h_annoLabelString)
end
-- pie chart radiuses
local innerRadius = tonumber(frame.args.innerRadius) or tonumber(frame.args.innerradius) or 0
local outerRadius = math.min(graphwidth, graphheight)
-- format JSON output
local formatJson = frame.args.formatjson
-- get x values
local x
x, xType, xMin, xMax = deserializeXData(frame.args.x, xType, xMin, xMax)
-- get y values (series)
local yValues = {}
local seriesTitles = {}
for name, value in pairs(frame.args) do
local yNum
if name == "y" then yNum = 1 else yNum = tonumber(string.match(name, "^y(%d+)$")) end
if yNum then
yValues[yNum] = value
-- name the series: default is "y<number>". Can be overwritten using the "y<number>Title" parameters.
seriesTitles[yNum] = frame.args["y" .. yNum .. "Title"] or frame.args["y" .. yNum .. "title"] or name
end
end
local y
y, yType, yMin, yMax = deserializeYData(yValues, yType, yMin, yMax)
-- create data tuples, consisting of series index, x value, y value
local data
if chartType == "pie" then
-- for pie charts the second second series is merged into the first series as radius values
data = convertXYToSingleSeries(x, y, xType, yType, { "y", "r" })
else
data = convertXYToManySeries(x, y, xType, yType, seriesTitles)
end
-- configure stacked charts
local stacked = false
local stats
if string.sub(chartType, 1, 7) == "stacked" then
chartType = string.sub(chartType, 8)
if #y > 1 then -- ignore stacked charts if there is only one series
stacked = true
-- aggregate data by cumulative y values
stats =
{
name = "stats", source = "chart", transform =
{
{
type = "aggregate",
groupby = { "x" },
summarize = { y = "sum" }
}
}
}
end
end
-- add annotations to data
local vannoData, hannoData
if v_annoLine then
vannoData = { name = "v_anno", format = { type = "json", parse = { x = xType } }, values = {} }
for i = 1, #v_annoLine do
local item = { x = v_annoLine[i], label = v_annoLabel[i] }
table.insert(vannoData.values, item)
end
end
if h_annoLine then
hannoData = { name = "h_anno", format = { type = "json", parse = { y = yType } }, values = {} }
for i = 1, #h_annoLine do
local item = { y = h_annoLine[i], label = h_annoLabel[i] }
table.insert(hannoData.values, item)
end
end
-- create scales
local scales = {}
local xscale = getXScale(chartType, stacked, xMin, xMax, xType, xScaleType)
table.insert(scales, xscale)
local yscale = getYScale(chartType, stacked, yMin, yMax, yType, yScaleType)
table.insert(scales, yscale)
local colorScale = getColorScale(colors, chartType, #x, #y)
table.insert(scales, colorScale)
local alphaScale = getAlphaColorScale(colors, y)
table.insert(scales, alphaScale)
local lineScale
if (linewidths) and (chartType == "line") then
lineScale = getLineScale(linewidths, chartType)
table.insert(scales, lineScale)
end
local radiusScale
if chartType == "pie" and #y > 1 then
radiusScale = getValueScale("r", 0, outerRadius)
table.insert(scales, radiusScale)
end
-- decide if lines (strokes) or areas (fills) should be drawn
local colorField
if chartType == "line" then colorField = "stroke" else colorField = "fill" end
-- create chart markings
local chartvis = getChartVisualisation(chartType, stacked, colorField, #y, innerRadius, outerRadius, linewidth, alphaScale, radiusScale, lineScale, interpolate)
local marks = { chartvis }
-- text marks
if showValues then
if type(showValues) == "string" then -- deserialize as table
local keyValues = mw.text.split(showValues, "%s*,%s*")
showValues = {}
for _, kv in ipairs(keyValues) do
local key, value = mw.ustring.match(kv, "^%s*(.-)%s*:%s*(.-)%s*$")
if key then showValues[key] = value end
end
end
local chartmarks = chartvis
if chartmarks.marks then chartmarks = chartmarks.marks[1] end
local textmarks = getTextMarks(chartmarks, chartType, outerRadius, scales, radiusScale, yType, showValues)
if chartmarks ~= chartvis then
table.insert(chartvis.marks, textmarks)
else
table.insert(marks, textmarks)
end
end
-- grids
if xGrid then
if xGrid == "0" then xGrid = false
elseif xGrid == 0 then xGrid = false
elseif xGrid == "false" then xGrid = false
elseif xGrid == "n" then xGrid = false
else xGrid = true
end
end
if yGrid then
if yGrid == "0" then yGrid = false
elseif yGrid == 0 then yGrid = false
elseif yGrid == "false" then yGrid = false
elseif yGrid == "n" then yGrid = false
else yGrid = true
end
end
-- symbol marks
if showSymbols and chartType ~= "rect" then
local chartmarks = chartvis
if chartmarks.marks then chartmarks = chartmarks.marks[1] end
if type(showSymbols) == "string" then
if showSymbols == "" then showSymbols = true
else showSymbols = numericArray(showSymbols)
end
else
showSymbols = tonumber(showSymbols)
end
-- custom size
local symSize
if type(showSymbols) == "number" then
symSize = tonumber(showSymbols*showSymbols*8.5)
elseif type(showSymbols) == "table" then
symSize = {}
for k, v in pairs(showSymbols) do
symSize[k]=v*v*8.5 -- "size" acc to Vega syntax is area of symbol
end
else
symSize = 50
end
-- symSizeScale
local symSizeScale = {}
if type(symSize) == "table" then
symSizeScale = getSymSizeScale(symSize)
table.insert(scales, symSizeScale)
end
-- custom shape
if stringArray(symbolsShape) and #stringArray(symbolsShape) > 1 then symbolsShape = stringArray(symbolsShape) end
local symShape = " "
if type(symbolsShape) == "string" and shapes[symbolsShape] then
symShape = shapes[symbolsShape]
elseif type(symbolsShape) == "table" then
symShape = {}
for k, v in pairs(symbolsShape) do
if symbolsShape[k] and shapes[symbolsShape[k]] then
symShape[k]=shapes[symbolsShape[k]]
else
symShape[k] = "circle"
end
end
else
symShape = "circle"
end
-- symShapeScale
local symShapeScale = {}
if type(symShape) == "table" then
symShapeScale = getSymShapeScale(symShape)
table.insert(scales, symShapeScale)
end
-- custom stroke
local symStroke
if (type(symbolsStroke) == "number") then
symStroke = tonumber(symbolsStroke)
-- TODO symStroke serialization
-- elseif type(symbolsStroke) == "table" then
-- symStroke = {}
-- for k, v in pairs(symbolsStroke) do
-- symStroke[k]=symbolsStroke[k]
-- --always draw x with stroke
-- if symbolsShape[k] == "x" then symStroke[k] = 2.5 end
--always draw x with stroke
-- if symbolsNoFill[k] then symStroke[k] = 2.5 end
-- end
else
symStroke = 0
--always draw x with stroke
if symbolsShape == "x" then symStroke = 2.5 end
--always draw x with stroke
if symbolsNoFill then symStroke = 2.5 end
end
-- TODO -- symStrokeScale
-- local symStrokeScale = {}
-- if type(symStroke) == "table" then
-- symStrokeScale = getSymStrokeScale(symStroke)
-- table.insert(scales, symStrokeScale)
-- end
local symbolmarks = getSymbolMarks(chartmarks, symSize, symShape, symStroke, symbolsNoFill, alphaScale)
if chartmarks ~= chartvis then
table.insert(chartvis.marks, symbolmarks)
else
table.insert(marks, symbolmarks)
end
end
local vannolines, vannolabels, hannolines, hannolabels = getAnnoMarks(chartmarks, persistentGrey, persistentGrey, 0.75)
if vannoData then
table.insert(marks, vannolines)
table.insert(marks, vannolabels)
end
if hannoData then
table.insert(marks, hannolines)
table.insert(marks, hannolabels)
end
-- axes
local xAxis, yAxis = getAxes(xTitle, xAxisFormat, xAxisAngle, xType, xGrid, yTitle, yAxisFormat, yType, yGrid, chartType)
-- legend
local legend
if legendTitle and tonumber(legendTitle) ~= 0 then legend = getLegend(legendTitle, chartType, outerRadius) end
-- construct final output object
local output =
{
version = 2,
width = graphwidth,
height = graphheight,
data = { data },
scales = scales,
axes = { xAxis, yAxis },
marks = marks,
legends = { legend }
}
if vannoData then table.insert(output.data, vannoData) end
if hannoData then table.insert(output.data, hannoData) end
if stats then table.insert(output.data, stats) end
local flags
if formatJson then flags = mw.text.JSON_PRETTY end
return mw.text.jsonEncode(output, flags)
end
function p.mapWrapper(frame)
return p.map(frame:getParent())
end
function p.chartWrapper(frame)
return p.chart(frame:getParent())
end
function p.chartDebuger(frame)
return "\n\nchart JSON\n ".. p.chart(frame) .. " \n\n" .. debuglog
end
-- Given an HTML-encoded title as first argument, e.g. one produced with {{ARTICLEPAGENAME}},
-- convert it into a properly URL path-encoded string
-- This function is critical for any graph that uses path-based APIs, e.g. PageViews graph
function p.encodeTitleForPath(frame)
return mw.uri.encode(mw.text.decode(mw.text.trim(frame.args[1])), 'PATH')
end
return p