Searched refs:variance (Results 1 - 4 of 4) sorted by relevance

/vbox/src/libs/xpcom18a4/nsprpub/lib/ds/
H A Dplarena.c369 pool->stats.variance += nb * nb;
383 pool->stats.variance -= size * size;
387 pool->stats.variance += size * size;
406 double mean, variance; local
411 variance = fabs(stats->variance / stats->nallocs - mean * mean);
413 mean = variance = 0;
428 fprintf(fp, " standard deviation: %g\n", sqrt(variance));
H A Dplhash.c464 double mean, variance; local
469 variance = 0;
480 variance += n * n;
487 variance = fabs(variance / nchains - mean * mean);
497 fprintf(fp, " standard deviation: %g\n", sqrt(variance));
H A Dplarena.h79 PRFloat64 variance; /* size variance accumulator */ member in struct:PLArenaStats
/vbox/src/libs/xpcom18a4/xpcom/ds/
H A Dpldhash.c727 double sqsum, mean, variance, sigma; local
773 variance = chainCount * sqsum - entryCount * entryCount;
774 if (variance < 0 || chainCount == 1)
775 variance = 0;
777 variance /= chainCount * (chainCount - 1);
778 sigma = sqrt(variance);

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