Description Usage Arguments Details Value
setMethod( f = "droplevels" , signature = "vector" , definition = function(x) x )
1 2 | ## S4 method for signature 'data.frame'
droplevels(x, except = NULL, exclude)
|
x |
An atomic vector or annotated vector. |
Drop Unused Levels from Data Frames
This is a copy from the S3-method from the base package.
x, unchanged.
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