factor2numeric {RTCA} | R Documentation |
The functions implement easy interface to certain tasks of factor. See datails for explaination
factor2numeric(x) relevels(x, refs)
x |
A vector of factor |
refs |
A vector of character, reference vector to give the orderof levels |
relevels
re-arrange the order of levels by the given
character refs
. Alternatively user could use
factor(...,levels=refs)
to achieve a similar effect, however
the relevels
enables also partial list. The missing
levels in refs
will be ordered to the last.
factor2numeric
converts factor of numerics into their
numeric form.
A vector of factor
Jitao David Zhang jitao_david.zhang@roche.com
## factor2numeric numFac <- factor(c(3.5, 2.5, 2.5,3.5, 1)) numFac levels(numFac) factor2numeric(numFac) class(factor2numeric(numFac)) ## relevels relevels(numFac, c("3.5", "1", "2.5")) relevels(numFac, c("3.5", "2.5"))