To reference or cite the objects present in the Software Heritage archive, permalinks based on SoftWare Hash IDentifiers (SWHIDs) must be used. Select below a type of object currently browsed in order to display its associated SWHID and permalink.
swh:1:cnt:210f2fec8b61e10fcf50defbf93603454b049179
swh:1:dir:e2c36723d398ff0e05f4b9fbd57913e818138c46
int nrow(SEXP x); int ncol(SEXP x);