Nothing
# Same as rowSums(x^2), but faster with C/C++
rowSumsSq = function(x){
stopifnot( is.numeric(x) );
output = double(NROW(x));
.Call("CrowSumsSq", x, output);
return(output);
}
# Same as colSums(x^2), but faster with C/C++
colSumsSq = function(x){
stopifnot( is.numeric(x) );
output = double(NCOL(x));
.Call("CcolSumsSq", x, output);
return(output);
}
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