r2lModifyClasses {r2lUniv}R Documentation

Modify basic classes

Description

Given a list of classes (like one produced by r2lFindClasses), the r2lModifyClasses function lets the user change some of the classes.

Usage

r2lModifyClasses(basicListClass, modification)

Arguments

basicListClass A list of classes, usually produced by r2lFindClasses
modification A list of classes, containing the classes to change.

Details

To set the basic class, r2lFindClasses uses some rules. The user might decide to accept r2lFindClasses choices for most columns, but not for all. In this case, instead of setting the basic type one by one, he can provide a modification list that will be used to correct some of r2lFindClasses choices.

Note that the user does not really need to use this function: providing directly the modification list to r2lUniv will have the same effect since r2lUniv will use r2lModifyClasses on the modification list.

Value

A four-field list, like r2lFindClasses:

Author(s)

Christophe Genolini christophe.genolini@free.fr

See Also

r2lUniv, r2lUniv.data.frame, r2lFindClasses, r2lModifyClasses

Examples

 # # # # # # # # # # # # # # # # # # #
#   R to LaTeX, Univariate Analyses   #
 #             Examples              # 
  #        r2lModifyClasses         #
   # # # # # # # # # # # # # # # # #
        
data(examCheating)

### Without modification in examCheating
(listClass <- r2lFindClasses(examCheating))

### We want Age to be treated as a continuous
changeInList <- list(continuous=c(2))
r2lModifyClasses(listClass,changeInList)

### ... and we also want some variables to be ordinal
changeInList <- list(continuous=c(2),ordinal=c(8:10,12))
r2lModifyClasses(listClass,changeInList)

[Package r2lUniv version 0.9 Index]