DAAG (version 0.58)

toupper.initial: Converts initial character of a string to upper case

Description

This function is useful for use before plotting, if one wants capitalized axis labels or factor levels.

Usage

toupper.initial(names)

Arguments

names

a character vector

Value

• a character vector with upper case initial values

Examples

toupper.initial(names(tinting)[c(3,4)])

library(lattice)
levels(tinting$agegp) <- toupper.initial(levels(tinting$agegp))
xyplot(csoa ~ it | sex * agegp, data=tinting)