DropEmpty pseudo-function
Pseudo-function to indicate that rows or columns containing no observations should be dropped.
DropEmpty(empty = "", which = c("row", "col", "cell"))empty |
String to use in empty cells. |
which |
A vector indicating what should be dropped. See the Details below. |
If the which argument contains "row", then
any row in the table in which all cells are empty will be dropped.
Similarly, if it contains "col", empty columns
will be dropped. If it contains "cell", then cells
in rows and columns that are not dropped will be set to
the empty string.
This is a “pseudo-function”: it takes the form of a function call, but is
never actually called: it is
handled specially by tabular.
df <- data.frame(row = factor(1:10), value = rnorm(10))
subset <- df[sample(10, 5),, drop = FALSE]
# Some rows did not get selected, so this looks ugly
tabular(row ~ value*mean, data = subset)
# This only shows rows with data in them
tabular(row*DropEmpty() ~ value*mean, data = subset)
# This shows empty cells as "(empty)"
tabular(row*DropEmpty("(empty)", "cell") ~ value*mean, data = subset)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.