plot_iota: Plot Iota2

Description

Function for creating a plot object that can be plotted via 'ggplot2'.

Usage

plot_iota(
  object,
  xlab = "Amount on all cases",
  ylab = "Categories",
  liota = "Assignment of the true category (Iota)",
  lcase2 = "Assignment to the false category",
  lcase3 = "Assignment from the false true category",
  lscale_quality = "Scale Quality",
  lscale_cat = c("insufficent", "minimum", "satisfactory", "good", "excellent"),
  number_size = 6,
  key_size = 0.5,
  text_size = 10,
  legend_position = "bottom",
  legend_direction = "vertical",
  scale = "none"
)

Value

Function returns an object of class gg, ggplot illustrating how the data of the different categories influence each other.

Arguments

object: Estimates of Iota 2 created with compute_iota2(), check_dgf() or check_new_rater().
xlab: Character passed to xlab() from scale_fill_manual(). Label of the x-axis.
ylab: Character passed to ylab() from scale_fill_manual(). Label of the y-axis.
liota: Character passed to labels() from scale_fill_manual(). Label for Iota.Amount of cases that are assigned to the correct category.
lcase2: Character passed to labels() from scale_fill_manual(). Label for the amount of cases that are assigned to a false category.
lcase3: Character passed to labels() from scale_fill_manual(). Label for the amount of cases that are assigned from a false category.
lscale_quality: character passed to scale_fill_manual() determining the title for the quality of a scale. Only used in conjunction with scale.
lscale_cat: Vector of strings with length 5. This vector contains the labels for each category of quality for the scale.
number_size: Double passed to geom_text() determining the size of the numbers within the plot.
key_size: Double passed to theme() determining the size of the legend keys.
text_size: Double passed to theme() determining the size of the text within the legend.
legend_position: string Position of the legend. Possible values are "bottom","right","left", "top" and "none".
legend_direction: string Layout of the items in the legend. Possible values are "horizontal" and "vertical".
scale: String for requesting an additional plot of reliability on the scale level. If scale="dynamic_iota_index" Dynamic Iota Index is used. If scale="static_iota_index" Static Iota Index is used. If scale="none" no additional plot is created.

References

Florian Berding and Julia Pargmann (2022).Iota Reliability Concept of the Second Generation. Measures for Content Analysis Done by Humans or Artificial Intelligences. Berlin: Logos. https://doi.org/10.30819/5581