Function to move a variable to a different position in a data frame.

mvvar(var, where, after=TRUE, data)

Arguments

var

variable to move.

where

variable next to which var will be moved.

after

logical indicating whether to position var after or before variable where (default is after=TRUE).

data

data frame that contains the variables specified above.

Details

The function can be used to move a variable to a different position in a data frame.

Value

A data frame.

Author

Wolfgang Viechtbauer wvb@wvbauer.com

Examples

# illustrative dataset dat <- data.frame(subj=rep(1:4, each=5), obs = 1:5, age = rep(c(20,31,27,22), each=5), stress = c(2,3,1,4,2, 3,3,3,3,3, 1,1,2,6,4, 1,2,1,3,1)) dat
#> subj obs age stress #> 1 1 1 20 2 #> 2 1 2 20 3 #> 3 1 3 20 1 #> 4 1 4 20 4 #> 5 1 5 20 2 #> 6 2 1 31 3 #> 7 2 2 31 3 #> 8 2 3 31 3 #> 9 2 4 31 3 #> 10 2 5 31 3 #> 11 3 1 27 1 #> 12 3 2 27 1 #> 13 3 3 27 2 #> 14 3 4 27 6 #> 15 3 5 27 4 #> 16 4 1 22 1 #> 17 4 2 22 2 #> 18 4 3 22 1 #> 19 4 4 22 3 #> 20 4 5 22 1
# move variable age after subj dat <- mvvar("age", "subj", data=dat) dat
#> subj age obs stress #> 1 1 20 1 2 #> 2 1 20 2 3 #> 3 1 20 3 1 #> 4 1 20 4 4 #> 5 1 20 5 2 #> 6 2 31 1 3 #> 7 2 31 2 3 #> 8 2 31 3 3 #> 9 2 31 4 3 #> 10 2 31 5 3 #> 11 3 27 1 1 #> 12 3 27 2 1 #> 13 3 27 3 2 #> 14 3 27 4 6 #> 15 3 27 5 4 #> 16 4 22 1 1 #> 17 4 22 2 2 #> 18 4 22 3 1 #> 19 4 22 4 3 #> 20 4 22 5 1
# move variable obs before age dat <- mvvar("obs", "age", after=FALSE, data=dat) dat
#> subj obs age stress #> 1 1 1 20 2 #> 2 1 2 20 3 #> 3 1 3 20 1 #> 4 1 4 20 4 #> 5 1 5 20 2 #> 6 2 1 31 3 #> 7 2 2 31 3 #> 8 2 3 31 3 #> 9 2 4 31 3 #> 10 2 5 31 3 #> 11 3 1 27 1 #> 12 3 2 27 1 #> 13 3 3 27 2 #> 14 3 4 27 6 #> 15 3 5 27 4 #> 16 4 1 22 1 #> 17 4 2 22 2 #> 18 4 3 22 1 #> 19 4 4 22 3 #> 20 4 5 22 1