Module: Charty::PlotMethods

Included in:
Charty
Defined in:
lib/charty/plot_methods.rb

Instance Method Summary collapse

Instance Method Details

#bar_plot(x: nil, y: nil, color: nil, data: nil, order: nil, color_order: nil, estimator: :mean, ci: 95, n_boot: 1000, units: nil, random: nil, orient: nil, key_color: nil, palette: nil, saturation:, error_color: [0.26, 0.26, 0.26], error_width: nil, cap_size: nil, dodge: true, **options, &block) ⇒ Object

Show the given data as rectangular bars.

Parameters:

  • x (defaults to: nil) —

    x-dimension input for plotting long-form data.

  • y (defaults to: nil) —

    y-dimension input for plotting long-form data.

  • color (defaults to: nil) —

    color-dimension input for plotting long-form data.

  • data (defaults to: nil) —

    Dataset for plotting.

  • order (defaults to: nil) —

    Order of the categorical dimension to plot the categorical levels in.

  • color_order (defaults to: nil) —

    Order of the color dimension to plot the categorical levels in.

  • estimator (defaults to: :mean) —

    Statistical function to estimate withint each categorical bin.

  • ci (defaults to: 95) —

    Size of confidence intervals to draw around estimated values.

  • n_boot (defaults to: 1000) —

    The size of bootstrap sample to use when computing confidence intervals.

  • units (defaults to: nil) —

    Identifier of sampling unit.

  • random (defaults to: nil) —

    Random seed or random number generator for reproducible bootstrapping.

  • orient (defaults to: nil) —

    Orientation of the plot (:v for vertical, or :h for horizontal).

  • key_color (defaults to: nil) —

    Color for all of the elements, or seed for a gradient palette.

  • palette (defaults to: nil) —

    Colors to use for the different levels of the color-dimension variable.

  • saturation —

    Propotion of the original saturation to draw colors.

  • error_color (defaults to: [0.26, 0.26, 0.26]) —

    Color for the lines that represent the confidence intervals.

  • error_width (defaults to: nil) —

    Thickness of error bar lines (and caps).

  • cap_size (defaults to: nil) —

    Width of the caps on error bars.

  • dodge (true, false) (defaults to: true) —

    If true, bar position is shifted along the categorical axis for avoid overlapping when the color-dimension is used.



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# File 'lib/charty/plot_methods.rb', line 26

def bar_plot(x: nil, y: nil, color: nil, data: nil,
             order: nil, color_order: nil,
             estimator: :mean, ci: 95, n_boot: 1000, units: nil, random: nil,
             orient: nil, key_color: nil, palette: nil, saturation: 1r,
             error_color: [0.26, 0.26, 0.26], error_width: nil, cap_size: nil,
             dodge: true, **options, &block)
  Plotters::BarPlotter.new(
    data: data, variables: { x: x, y: y, color: color },
    order: order, orient: orient,
    estimator: estimator, ci: ci, n_boot: n_boot, units: units, random: random,
    color_order: color_order, key_color: key_color, palette: palette, saturation: saturation,
    error_color: error_color, error_width: error_width, cap_size: cap_size,
    dodge: dodge,
    **options, &block
  )
end

#box_plot(x: nil, y: nil, color: nil, data: nil, order: nil, color_order: nil, orient: nil, key_color: nil, palette: nil, saturation:, width:, dodge: true, flier_size: 5, line_width: nil, whisker: 1.5, **options, &block) ⇒ Object

Show the distributions of the given data by boxes and whiskers.

Parameters:

  • x (defaults to: nil) —

    X-dimension input for plotting long-Form data.

  • y (defaults to: nil) —

    Y-dimension input for plotting long-form data.

  • color (defaults to: nil) —

    Color-dimension input for plotting long-form data.

  • data (defaults to: nil) —

    Dataset for plotting.

  • order (defaults to: nil) —

    Order of the categorical dimension to plot the categorical levels in.

  • color_order (defaults to: nil) —

    Order of the color dimension to plot the categorical levels in.

  • orient (defaults to: nil) —

    Orientation of the plot (:v for vertical, or :h for horizontal).

  • key_color (defaults to: nil) —

    Color for all of the elements, or seed for a gradient palette.

  • palette (defaults to: nil) —

    Colors to use for the different levels of the color-dimension variable.

  • saturation —

    Propotion of the original saturation to draw colors.

  • width —

    Width of a full element when not using the color-dimension, or width of all the elements for one level of the major grouping variable.

  • dodge (true, false) (defaults to: true) —

    If true, bar position is shifted along the categorical axis for avoid overlapping when the color-dimension is used.

  • flier_size (defaults to: 5) —

    Size of the markers used to indicate outlier observations.

  • line_width (defaults to: nil) —

    Width of the gray lines that frame the plot elements.

  • whisker (defaults to: 1.5) —

    Propotion of the IQR past the low and high quartiles to extend the plot whiskers. Points outside of this range will be treated as outliers.



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# File 'lib/charty/plot_methods.rb', line 109

def box_plot(x: nil, y: nil, color: nil, data: nil,
             order: nil, color_order: nil,
             orient: nil, key_color: nil, palette: nil, saturation: 1r,
             width: 0.8r, dodge: true, flier_size: 5, line_width: nil,
             whisker: 1.5, **options, &block)
  Plotters::BoxPlotter.new(
    data: data,
    variables: { x: x, y: y, color: color },
    order: order,
    color_order: color_order,
    orient: orient,
    key_color: key_color,
    palette: palette,
    saturation: saturation,
    width: width,
    dodge: dodge,
    flier_size: flier_size,
    line_width: line_width,
    whisker: whisker,
    **options,
    &block
  )
end

#count_plot(x: nil, y: nil, color: nil, data: nil, order: nil, color_order: nil, orient: nil, key_color: nil, palette: nil, saturation:, dodge: true, **options, &block) ⇒ Object 



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# File 'lib/charty/plot_methods.rb', line 43

def count_plot(x: nil, y: nil, color: nil, data: nil,
               order: nil, color_order: nil,
               orient: nil, key_color: nil, palette: nil, saturation: 1r,
               dodge: true, **options, &block)
  case
  when x.nil? && !y.nil?
    x = y
    orient = :h
  when y.nil? && !x.nil?
    y = x
    orient = :v
  when !x.nil? && !y.nil?
    raise ArgumentError,
          "Unable to pass both x and y to count_plot"
  end

  Plotters::CountPlotter.new(
    data: data,
    variables: { x: x, y: y, color: color },
    order: order,
    orient: orient,
    estimator: :count,
    ci: nil,
    units: nil,
    random: nil,
    color_order: color_order,
    key_color: key_color,
    palette: palette,
    saturation: saturation,
    dodge: dodge,
    **options
  ) do |plotter|
    plotter.value_label = "count"
    block.(plotter) unless block.nil?
  end
end

#scatter_plot(x: nil, y: nil, color: nil, style: nil, size: nil, data: nil, key_color: nil, palette: nil, color_order: nil, color_norm: nil, sizes: nil, size_order: nil, size_norm: nil, markers: true, marker_order: nil, alpha: nil, legend: :auto, **options, &block) ⇒ Object

Scatter plot

Parameters:

  • x (vector-like object, key in data) (defaults to: nil)
  • y (vector-like object, key in data) (defaults to: nil)
  • color (vector-like object, key in data) (defaults to: nil)
  • style (vector-like object, key in data) (defaults to: nil)
  • size (vector-like object, key in data) (defaults to: nil)
  • data (table-like object) (defaults to: nil)
  • key_color (color object) (defaults to: nil)
  • palette (String, Array<Numeric>, Palette) (defaults to: nil)
  • color_order (Array<String>, Array<Symbol>) (defaults to: nil)
  • color_norm (defaults to: nil)
  • sizes (Array, Hash) (defaults to: nil)
  • size_order (Array) (defaults to: nil)
  • size_norm (defaults to: nil)
  • markers (true, false, Array, Hash) (defaults to: true)
  • marker_order (Array) (defaults to: nil)
  • alpha (scalar number) (defaults to: nil) —

    Propotional opacity of the points.

  • legend (:auto, :brief, :full, false) (defaults to: :auto) —

    How to draw legend. If :brief, numeric color and size variables will be represented with a sample of evenly spaced values. If :full, every group will get an entry in the legend. If :auto, choose between brief or full representation based on number of levels. If false, no legend data is added and no legend is drawn.



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# File 'lib/charty/plot_methods.rb', line 158

def scatter_plot(x: nil, y: nil, color: nil, style: nil, size: nil,
                 data: nil, key_color: nil, palette: nil, color_order: nil,
                 color_norm: nil, sizes: nil, size_order: nil, size_norm: nil,
                 markers: true, marker_order: nil, alpha: nil, legend: :auto,
                 **options, &block)
  Plotters::ScatterPlotter.new(
    data: data,
    variables: { x: x, y: y, color: color, style: style, size: size },
    key_color: key_color,
    palette: palette,
    color_order: color_order,
    color_norm: color_norm,
    sizes: sizes,
    size_order: size_order,
    size_norm: size_norm,
    markers: markers,
    marker_order: marker_order,
    alpha: alpha,
    legend: legend,
    **options,
    &block
  )
end