DataChart

10 Mar 2023

Library "DataChart"
Library to plot scatterplot or heatmaps for your own set of data samples

draw(this)
  draw contents of the chart object
  Parameters:
    this: Chart object
  Returns: current chart object

init(this)
  Initialize Chart object.
  Parameters:
    this: Chart object to be initialized
  Returns: current chart object

addSample(this, sample, trigger)
  Add sample data to chart using Sample object
  Parameters:
    this: Chart object
    sample: Sample object containing sample x and y values to be plotted
    trigger: Samples are added to chart only if trigger is set to true. Default value is true
  Returns: current chart object

addSample(this, x, y, trigger)
  Add sample data to chart using x and y values
  Parameters:
    this: Chart object
    x: x value of sample data
    y: y value of sample data
    trigger: Samples are added to chart only if trigger is set to true. Default value is true
  Returns: current chart object

addPriceSample(this, priceSampleData, config)
  Add price sample data - special type of sample designed to measure price displacements of events
  Parameters:
    this: Chart object
    priceSampleData: PriceSampleData object containing event driven displacement data of x and y
    config: PriceSampleConfig object containing configurations for deriving x and y from priceSampleData
  Returns: current chart object

Sample
  Sample data for chart
  Fields:
    xValue: x value of the sample data
    yValue: y value of the sample data

ChartProperties
  Properties of plotting chart
  Fields:
    title: Title of the chart
    suffix: Suffix for values. It can be used to reference 10X or 4% etc. Used only if format is not format.percent
    matrixSize: size of the matrix used for plotting
    chartType: Can be either scatterplot or heatmap. Default is scatterplot
    outliersStart: Indicates the percentile of data to filter out from the starting point to get rid of outliers
    outliersEnd: Indicates the percentile of data to filter out from the ending point to get rid of outliers.
    backgroundColor
    plotColor: color of plots on the chart. Default is color.yellow. Only used for scatterplot type
    heatmapColor: color of heatmaps on the chart. Default is color.red. Only used for heatmap type
    borderColor: border color of the chart table. Default is color.yellow.
    plotSize: size of scatter plots. Default is size.large
    format: data representation format in tooltips. Use mintick.percent if measuring any data in terms of percent. Else, use format.mintick
    showCounters: display counters which shows totals on each quadrants. These are single cell tables at the corners displaying number of occurences on each quadrant.
    showTitle: display title at the top center. Uses the title string set in the properties
    counterBackground: background color of counter table cells. Default is color.teal
    counterTextColor: text color of counter table cells. Default is color.white
    counterTextSize: size of counter table cells. Default is size.large
    titleBackground: background color of chart title. Default is color.maroon
    titleTextColor: text color of the chart title. Default is color.white
    titleTextSize: text size of the title cell. Default is size.large
    addOutliersToBorder: If set, instead of removing the outliers, it will be added to the border cells.
    useCommonScale: Use common scale for both x and y. If not selected, different scales are calculated based on range of x and y values from samples. Default is set to false.
    plotchar: scatter plot character. Default is set to ascii bullet.

ChartDrawing
  Chart drawing objects collection
  Fields:
    properties: ChartProperties object which determines the type and characteristics of chart being plotted
    titleTable: table containing title of the chart.
    mainTable: table containing plots or heatmaps.
    quadrantTables: Array of tables containing counters of all 4 quandrants

Chart
  Chart type which contains all the information of chart being plotted
  Fields:
    properties: ChartProperties object which determines the type and characteristics of chart being plotted
    samples: Array of Sample objects collected over period of time for plotting on chart.
    displacements: Array containing displacement values. Both x and y values
    displacementX: Array containing only X displacement values.
    displacementY: Array containing only Y displacement values.
    drawing: ChartDrawing object which contains all the drawing elements

PriceSampleConfig
  Configs used for adding specific type of samples called PriceSamples
  Fields:
    duration: impact duration for which price displacement samples are calculated.
    useAtrReference: Default is true. If set to true, price is measured in terms of Atr. Else is measured in terms of percentage of price.
    atrLength: atrLength to be used for measuring the price based on ATR. Used only if useAtrReference is set to true.

PriceSampleData
  Special type of sample called price sample. Can be used instead of basic Sample type
  Fields:
    trigger: consider sample only if trigger is set to true. Default is true.
    source: Price source. Default is close
    highSource: High price source. Default is high
    lowSource: Low price source. Default is low
    tr: True range value. Default is ta.tr