Barplot

• Arguments: One categorical variable

• Argument menu:

  • Example:

    

    ---> images/plot-barplot-arg-menu.png <---

  • Only categorical variables are listed in this menu.

  • This argument menu allows the selection of only one variable.

  • If Horizontal? is checked, a horizontal barplot will be drawn. When the categorical variable to be visualized with a barplot has long category names, it's better to check this and visualize it with a horizontal barplot. When this is checked, Trellis? will be grayed out and won't be sensitive to user input.

  • If Percentage? is checked,

  • If Trellis? is checked, a barplot trellis display will be drawn. When this is checked, Horizontal? will be grayed out and won't be sensitive to user input.

• Available modes: , , and .

• Housekeeping function:

  Abbreviate Categories...	Categorize by Colors...	Comment...
  Copy	Save as PNG Image...	Set Axis Labels...
  Set Background...	Set Screen Size Same as...	Set as Default Plot Size
  Shuffle Categories...	Summarize Data

• Example: Figure 11-6

  Figure 11-6. Barplot

  

  ---> images/plot-barplot-example.png <---

A barplot is very similar to a histogram in appearance but it's only for a single categorical variable. See here for a description of the agglomerative icons in barplots.

Even if Horizontal? is not checked, Argos would still draw a horizontal barplot [1] for a categorical variable whose number of categories in the data set being visualized is greater than the value specified by the :too-many-categories-threshold preference, which defaults to 50. Figure 11-7 is such an example.