Displaying 2 results from an estimated 2 matches for "set_dimnames".
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get_dimnames
2016 Jun 10
0
collapsing list of NULLs dimnames into a NULL
...s<- do the collapse would fix the problem
in one place once for all and avoid a lot of repeated code.
Finally, having this functionality available at the C level would be
great. Would basically be a wrapper to
Rf_setAttrib(x, R_DimNamesSymbol, dimnames)
that takes care of the collapse. The SET_DIMNAMES macro could be
redefined to call that wrapper instead...
Thanks,
H.
--
Herv? Pag?s
Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M1-B514
P.O. Box 19024
Seattle, WA 98109-1024
E-mail: hpages at fredhutch.org
Phon...
2009 Mar 27
0
imporving performance of slicing on matrices and S4 their derivatives
...s */
int nrow = Rf_nrows(m);
int ncol = Rf_ncols(m);
SEXP res, dim;
PROTECT(res = allocVector(REALSXP, nrow*ncol));
PROTECT(dim = allocVector(INTSXP, 2));
INTEGER(dim)[0] = nrow;
INTEGER(dim)[1] = ncol;
SET_DIM(res, dim);
if (GET_DIMNAMES(m)!= R_NilValue)
SET_DIMNAMES(res, Rf_duplicate(GET_DIMNAMES(m)));
if (ncol>0 && nrow>0)
memcpy(REAL(res), REAL(m), nrow*ncol*sizeof(double));
UNPROTECT(2);
return res;"
mcols = cfunction(signature(m="matrix"), body=body,
includes="#include <string.h>")
##...