makeFactor: Change numeric variables factors.

In cdparcoord: Top Frequency-Based Parallel Coordinates

Description

Change numeric variables that are specified in varnames to factors so that discretize won't partition.

Usage

    makeFactor(df, varnames)

Arguments

df	Input data frame.
varnames	Names of variables to be converted to factors.

Author(s)

Norm Matloff <[e-mail]>, Vincent Yang <[e-mail]>, and Harrison Nguyen <[e-mail]>

Examples

data(prgeng)
pe <- prgeng[,c(1,3,5,7:9)]
class(pe$educ)  # integer
pe <- makeFactor(pe,c('educ','occ','sex'))
class(pe$educ)  # factor
# nice to give levels names
levels(pe$sex) <- c('male','female')
head(pe$sex)

cdparcoord documentation built on Aug. 5, 2019, 1:02 a.m.