recode function

Recodes negatively worded items

Returns a matrix or data.frame with the indicated items recoded.

recode(X, items = NULL, values = defaultValues)

Details

The result is X for which columns items have been recoded.

Arguments

• X: matrix or data frame of numeric data containing the responses of nrow(X) respondents to ncol(X) items. Missing values are allowed
• items: Vector of integers indicating the items to be recoded
• values: Vector of possible item scores. By default the range of the observed values is taken

Returns

The result is X for which columns items have been recoded.

Author(s)

L. A. van der Ark L.A.vanderArk@uva.nl

See Also

DS14, twoway

Examples

data(DS14)
  
  # Handle missing data and recode negatively worded items
  X <- DS14[, 3 : 16]
  X <- twoway(X)
  X <- recode(X, c(1, 3))
  head(X)