public static RDouble convertNAandNaNtoZero(RDouble d) {
if (d instanceof ScalarDoubleImpl) {
ScalarDoubleImpl sd = (ScalarDoubleImpl) d;
if (sd.isNAorNaN()) {
return BOXED_ZERO;
} else {
return sd;
}
} else {
RDouble res = d.materialize();
double[] content = res.getContent();
for (int i = 0; i < content.length; i++) {
if (isNAorNaN(content[i])) {
content[i] = 0;
}
}
return res;
}
}
