unfold_idx {dfidx} | R Documentation |
Fold and Unfold a dfidx object
Description
fold_idx
takes a dfidx
object, includes the indexes as stand
alone columns, remove the idx
column and return a data frame,
with an ids
attribute that contains the informations about the
indexes. fold_idx
performs the opposite operation.
Usage
unfold_idx(x)
fold_idx(x, pkg = NULL, sort = FALSE)
Arguments
x |
a |
pkg |
if not |
sort |
a boolean, whether the resulting |
Value
a data frame for the unfold_dfidx
function, a dfidx
object for the fold_dfidx
function
Author(s)
Yves Croissant
Examples
mn <- dfidx(munnell, idx = c(region = "state", "year"), position = 3, name = "index")
mn2 <- unfold_idx(mn)
attr(mn, "ids")
mn3 <- fold_idx(mn2)
identical(mn, mn3)
[Package dfidx version 0.2-0 Index]