Generate column chart with reference line.

column_chart_reference(
  data,
  x,
  series,
  ref_value,
  ref_label = NULL,
  styles = NULL,
  interval = "months"
)

Arguments

data	data frame in wide format containing data to be plotted
x	vector containing labels for x axis or name of column in data with values of x axis labels
series	vector containing names of columns in data with values to plot
ref_value	one element numeric vector with referencing value.
ref_label	name of the referencing value
styles	optional vector with styles of bars
interval	intervals on x axis. The width of the bars depends on this parameter

Value

object of class tidychart with a character vector containing SVG elements

Examples

# prepare some data frame
df <- data.frame(x = month.abb[1:6],
                 y = c(2, 4, 2, 1, 2.5, 3),
                 z = c(3, 4.5, 2, 1, 4, 2))

# generate character vector with svg data
column_chart_reference(df, x = 'x',
                       series = 'y',
                       ref_value = 3,
                       ref_label = 'baseline')