This produces an object that, when passed through rescomp functions such as funcresp_type1(), and ultimately provided to spec_rescomp(), inherits spnum and resnum from the arguments to spec_rescomp().
Thus, it is shorthand for matrix(c(...), nrow = spnum, ncol = resnum, byrow = TRUE).
Inheritance only works when passed directly through rescomp functions; it will fail if used in the func provided to a function such as funcresp_custom().
crmatrix(..., byrow = TRUE)S3 object of class rescomp_crmatrix.
# TODO