Contingency tables are often displayed using bar charts and dot plots. These methods operate directly on tables, bypassing the need to convert them to data frames for use with the formula interface. Matrices and arrays are also supported, by coercing them to tables.
# S3 method for table barchart(x, data, groups = TRUE, origin = 0, stack = TRUE, …, horizontal = TRUE)
# S3 method for array barchart(x, data, …)
# S3 method for matrix barchart(x, data, …)
# S3 method for table dotplot(x, data, groups = TRUE, …, horizontal = TRUE)
# S3 method for array dotplot(x, data, …)
# S3 method for matrix dotplot(x, data, …)
Should not be specified. If specified, will be ignored with a warning.
A logical flag, indicating whether to use the last dimension as a grouping variable in the display.
panel.barchart. The defaults for the
table method are different.
Logical flag, indicating whether the plot should be horizontal (with the categorical variable on the y-axis) or vertical.
Other arguments, passed to the underlying
The first dimension is used as the variable on the categorical axis.
The last dimension is optionally used as a grouping variable (to
produce stacked barcharts by default). All other dimensions are used
as conditioning variables. The order of these variables cannot be
altered (except by permuting the original argument beforehand using
aperm). For more flexibility, use
the formula method after converting the table to a data frame using