variable.update: Update variable

In jeppebundsgaard/RDigram: Analysis of Items from Tests and Surveys

Update variable

Description

Update one or more variable(s) in a DIGRAM Object.

Usage

variable.update(
  do = NULL,
  variable.to.update = NULL,
  variable.name = NULL,
  variable.label = NULL,
  category.names = NULL,
  variable.type = NULL,
  minimum = NULL,
  maximum = NULL,
  cutpoints = NULL,
  reverse = NULL
)

Arguments

do	A digram.object
variable.to.update	The number or name of the variable(s) which should be updated
variable.name	New name for the variable (string)
variable.label	New label for the variable (one or more uppercase letters)
variable.type	Type of variable ("ordinal" or "nominal")
minimum	Smallest value of the variable (lower values are coded NA)
maximum	Largest value of the variable (lower values are coded NA)
cutpoints	Cutpoints used to recode the variable Category 1: minimum <= values <= cutpoint(1) Category 2: cutpoint(1) < values <= cutpoint(2) ... Category N: cutpoint(n) < values <= maximum
reverse	Boolean. Reverse values (after cutpoints applied).

Details

A set of variables can be updated by providing a vector of variable names/numbers to update and ordered lists with their new properties. For variable.type, cutpoints, minimum and maximum you can provide one property to give all variables.

Value

Returns a DIGRAM object with (an) updated variable(s)

Author(s)

Jeppe Bundsgaard [e-mail]

References

Kreiner, S. (2003). Introduction to DIGRAM. Dept. of Biostatistics, University of Copenhagen.

Examples

data(DHP)
DHP<-variable.update(do=DHP,variable.to.update="dhp36",cutpoints=c(2,3))
DHP<-variable.update(do=DHP,variable.to.update=c(1,3),variable.label=list("32","36"))

jeppebundsgaard/RDigram documentation built on Oct. 29, 2023, 7:15 p.m.