categorize function

A table function to use with magrittr pipes

Accepts a data frame as input and computes a contingency table for direct use in combination with the magrittr package.

categorize(.data, ...)

Arguments

• .data: A data frame
• ...: A formula (as in xtabs) or one or more objects which can be interpreted as factors (including character strings), or a list (or data frame) whose components can be so interpreted.

Returns

A table (possibly as an xtabs class if a model formula was used)

Details

categorize is a wrapper to xtabs or table such that a data frame can be given as the first argument.

Examples

if (requireNamespace("magrittr", quietly = TRUE)) {
    library(magrittr)

    esoph %>% categorize(alcgp, agegp)
    esoph %>% categorize(~ alcgp + agegp)
}

Author(s)

Claus Ekstrom claus@rprimer.dk