derivation_slice ObjectCreate a derivation_slice object as input for slice_derivation().
derivation_slice(filter, args = NULL)An object of class derivation_slice
An unquoted condition for defining the observations of the slice
none
Arguments of the derivation to be used for the slice
A params() object is expected.
NULL
slice_derivation(), params()
Higher Order Functions: 
call_derivation(),
restrict_derivation(),
slice_derivation()