Transfer attributes from a origin data.frame to a target data.frame.

Function allows to copy the attributes of (a subset of) common variables from an origin data.frame to a target data.frame.

Usage

transferAttributes(origin, target, whichVars = NULL, whichAttrs = NULL)

Arguments

origin

the data.frame from which the attributes should be copied.

target

the target data.frame to which the attributes should be copied.

whichVars

Optional: character vector of variables which attributes should be copied. If NULL, all common variables will be used.

whichAttrs

Optional: character vector of attributes which should be copied. If NULL, all attributes from origin data.frame variables will be used.

Value

The target data.frame with additional attributes

Examples

mtcars2 <- mtcars
attr(mtcars[,"cyl"], "varLabel") <- "Number of cylinders"
mtcars2 <- transferAttributes(mtcars, mtcars2, whichVars = "cyl", whichAttrs="varLabel")