Plot continuous samples

plot() aggregates and plots continuous samples as violin or density plot.

Usage

# S3 method for class 'cont_sample'
plot(
  x,
  var,
  ...,
  group = FALSE,
  type = "violin",
  title = NULL,
  xlab = "",
  ylab = "",
  colours = NULL,
  line_width = 0.7,
  family = "sans",
  theme = NULL
)

Arguments

x

n object of class cont_sample created by the function cont_sample_data.

var

character string with the name of the variable to be plotted.

...

Unused arguments, included only for future extensions of the function.

group

logical, if TRUE data are aggregated by expert.

type

character string with the type of plot, either violin or density.

title

character string with the title of the plot.

xlab

character string with the x-axis label.

ylab

character string with the y-axis label.

colours

character vector with the colours to be used in the plot.

line_width

numeric with the width of the lines in the density plot.

family

character string with the font family to be used in the plot.

theme

theme function to be used in the plot.

Value

Invisibly a ggplot object.

Details

If a theme is provided, the family argument is ignored.

See also

Other plot helpers: plot.cat_sample(), plot.elic_cont()

Author

Sergio Vignali

Examples

# Create the elict object and add data for the first and second round from a
# data.frame.
my_elicit <- cont_start(var_names = c("var1", "var2", "var3"),
                        var_types = "ZNp",
                        elic_types = "134",
                        experts = 6) |>
  cont_add_data(x, data_source = round_1, round = 1) |>
  cont_add_data(data_source = round_2, round = 2)
#> ✔ <elic_cont> object for "Elicitation" correctly initialised
#> ✔ Data added to "Round 1" from "data.frame"
#> ✔ Data added to "Round 2" from "data.frame"

# Sample data for the first round for all variables
samp <- cont_sample_data(my_elicit, round = 1)
#> Warning: ! Some values have been constrained to be between 0 and 1.
#> ✔ Rescaled min and max for variable "var3".
#> ✔ Data for "var1", "var2", and "var3" sampled successfully using the "basic" method.

# Plot the sampled data for the variable `var3` as violin plot
plot(samp, var = "var3", type = "violin")


# Plot the sampled data for the variable `var2` as density plot
plot(samp, var = "var2", type = "density")


# Plot the sampled data for the variable `var1` as density plot for the group
plot(samp, var = "var1", group = TRUE, type = "density")


# Plot the sampled data for the variable `var3` as violin plot passing the
# colours
plot(samp, var = "var3", type = "violin",
     colours = c("steelblue4", "darkcyan", "chocolate1",
                 "chocolate3", "orangered4", "royalblue1"))