R: Extract/Replace Measurement Scale

mscale {psychotools} | R Documentation

## Extract/Replace Measurement Scale

### Description

Generic functions for extracting and replacing the measurement scale from an object.

### Usage

      mscale(object, ...)
      mscale(object) <- value

### Arguments

`object` | an object.
`...` | arguments passed to methods.
`value` | an object describing the measurement scale.

### Examples

    ## methods for "paircomp" data
    pc <- paircomp(rbind(
      c(2,  1,  0),
      c(1,  1, -1),
      c(1, -2, -1),
      c(0,  0,  0)))
    pc

    ## extract
    mscale(pc)

    ## replace (collapse to >/=/< scale)
    mscale(pc) <- sign(mscale(pc))
    pc

    ## similar for "itemresp" data
    ir <- itemresp(cbind(
      c(-1, 0, 1, 1, 0),
      c(0, 1, 2, 1, 2),
      c(1, 2, 1, 1, 3)))
    ir

    ## extract
    mscale(ir)

    ## replace (single scale for all items)
    mscale(ir) <- 1:3
    ir

[Package psychotools version 0.4-2 Index]