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author | Damien Lespiau <damien.lespiau@intel.com> | 2015-06-26 17:02:09 +0100 |
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committer | Damien Lespiau <damien.lespiau@intel.com> | 2015-06-27 16:04:07 +0100 |
commit | 3a5cf84317197cdac88196cda76c6a7e08943f20 (patch) | |
tree | 5a8de68361378d9884ad6d41ac373382dc907324 /lib/tests | |
parent | a2f6fd3725f50919c79694f1e24c1dec2752c875 (diff) |
stats: Add a way to specify if the data set is a population or a sample
This changes how we compute the variance. We want an unbiased variance
when reasoning about a sample.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Diffstat (limited to 'lib/tests')
-rw-r--r-- | lib/tests/igt_stats.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/tests/igt_stats.c b/lib/tests/igt_stats.c index f76d3344..59097c8d 100644 --- a/lib/tests/igt_stats.c +++ b/lib/tests/igt_stats.c @@ -89,6 +89,7 @@ static void test_std_deviation(void) double mean, variance, std_deviation; igt_stats_init(&stats, 8); + igt_stats_set_population(&stats, true); igt_stats_push(&stats, 2); igt_stats_push(&stats, 4); |