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add debuglog for quantile

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tqchen 2015-03-23 21:17:50 -07:00
parent da3a376384
commit d53e642b5d
1 changed files with 13 additions and 1 deletions
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14
src/utils/quantile.h
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@ -316,7 +316,19 @@ struct WXQSummary : public WQSummary<DType, RType> {
mrange += src.data[src.size-1].rmax_prev() - src.data[bid].rmin_next();
}
}
utils::Assert(nbig < n - 1, "too many large chunk");
if (nbig >= n - 1) {
// see what was the case
fprintf(stderr, "LOG: check quantile stats, nbig=%lu, n=%lu\n", nbig, n);
fprintf(stderr, "LOG: srcsize=%lu, maxsize=%lu, range=%g, chunk=%g\n",
src.size, maxsize, static_cast<double>(range),
static_cast<double>(chunk));
for (size_t i = 0; i < src.size; ++i) {
printf("[%lu] rmin=%g, rmax=%g, wmin=%g, isbig=%d\n", i,
src.data[i].rmin, src.data[i].rmax, src.data[i].wmin,
CheckLarge(src.data[i], chunk));
}
utils::Assert(nbig < n - 1, "quantile: too many large chunk");
}
this->data[0] = src.data[0];
this->size = 1;
// use smaller size