R: Return the chi-squared residuals of a two-way frequency...

chisq.residuals {questionr} | R Documentation

## Return the chi-squared residuals of a two-way frequency table.

### Description

Return the raw, standardized or Pearson's residuals (the default) of a chi-squared test on a two-way frequency table.

### Usage

    chisq.residuals(tab, digits = 2, std = FALSE, raw = FALSE)

### Arguments

`tab` | frequency table
`digits` | number of digits to display
`std` | if `TRUE`, returns the standardized residuals. Otherwise, returns the Pearson residuals. Incompatible with `raw`.
`raw` | if `TRUE`, returns the raw (`observed - expected`) residuals. Otherwise, returns the Pearson residuals. Incompatible with `std`.

### Details

This function is just a wrapper around the `chisq.test` base R function. See this function's help page for details on the computation.

### See Also

`chisq.test`

### Examples

    ## Sample table
    data(Titanic)
    tab <- apply(Titanic, c(1,4), sum)
    ## Pearson residuals
    chisq.residuals(tab)
    ## Standardized residuals
    chisq.residuals(tab, std = TRUE)
    ## Raw residuals
    chisq.residuals(tab, raw = TRUE)

[Package questionr version 0.6.3 Index]