reversed {memisc} | R Documentation |
The function reversed()
returns a copy of its argument with codes
or levels in reverse order.
reversed(x) ## S4 method for signature 'item.vector' reversed(x) ## S4 method for signature 'factor' reversed(x)
x |
An object – an "item" object or a "data.set" object |
If the argument of the function reversed()
than either the
unique valid values or the labelled valid values recoded into the
reverse order.
If th argument is a factor than the function returns the factor with levels in reverse order.
ds <- data.set( x = as.item(sample(c(1:3,9),100,replace=TRUE), labels=c("One"=1, "Two"=2, "Three"=3, "Missing"=9))) df <- as.data.frame(ds) ds <- within(ds,{ xr <- reversed(x) }) codebook(ds) df <- within(df,{ xr <- reversed(x) }) codebook(df)