Cross Tabulation
Usage
table(..., exclude = c(NA, NaN))
Arguments
...
|
objects which can be interpreted as factors (including
character strings), or a list (or data frame) whose components can
be so interpreted
|
exclude
|
values to use in the exclude argument of factor
when interpreting non-factor objects
|
Description
table uses the cross-classifying factors to build a contingency
table of the counts at each combination of factor levels.Examples
## Simple frequency distribution
table(rpois(100,5))
data(warpbreaks)
attach(warpbreaks)
## Check the design:
table(wool, tension)
data(state)
table(state.division, state.region)
data(airquality)
attach(airquality)
# simple two-way contingency table
table(cut(Temp, quantile(Temp)), Month)