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authorGravatar mtklein <mtklein@chromium.org>2015-10-28 09:45:44 -0700
committerGravatar Commit bot <commit-bot@chromium.org>2015-10-28 09:45:44 -0700
commit24a592c2ef586eaffefab068fdf94c284ae80e57 (patch)
tree9abea77b51129f41d8080d1ac34b663f835f5a02 /bin/compare
parent27a58348b2a38bf8cca16dfd8f332d8cd5773270 (diff)
Make bin/c and bin/compare work on Windows.
- Call python explicitly. - Drop numpy dependency (on numpy.mean.... come on.) - Make scipy dependency optional. Depends on https://codereview.chromium.org/1419073003 to really work. BUG=skia: Doesn't change code. NOTRY=true Review URL: https://codereview.chromium.org/1416833004
Diffstat (limited to 'bin/compare')
-rwxr-xr-xbin/compare25
1 files changed, 15 insertions, 10 deletions
diff --git a/bin/compare b/bin/compare
index 82f85d5fd9..95d4100e95 100755
--- a/bin/compare
+++ b/bin/compare
@@ -1,10 +1,13 @@
#!/usr/bin/env python
import argparse
-import numpy
import sys
-from scipy.stats import mannwhitneyu
-from scipy.stats import sem
+
+have_scipy = True
+try:
+ import scipy.stats
+except:
+ have_scipy = False
SIGNIFICANCE_THRESHOLD = 0.0001
@@ -32,15 +35,17 @@ for (path, d) in [(args.baseline, a), (args.experiment, b)]:
common = set(a.keys()).intersection(b.keys())
+def mean(xs):
+ return sum(xs) / len(xs)
+
ps = []
for key in common:
- _, p = mannwhitneyu(a[key], b[key]) # Non-parametric t-test. Doesn't assume normal dist.
- if args.use_means:
- am, bm = numpy.mean(a[key]), numpy.mean(b[key])
- asem, bsem = sem(a[key]), sem(b[key])
- else:
- am, bm = min(a[key]), min(b[key])
- asem, bsem = 0, 0
+ p, asem, bsem = 0, 0, 0
+ m = mean if args.use_means else min
+ am, bm = m(a[key]), m(b[key])
+ if have_scipy:
+ _, p = scipy.stats.mannwhitneyu(a[key], b[key])
+ asem, bsem = scipy.stats.sem(a[key]), sem(b[key])
ps.append((bm/am, p, key, am, bm, asem, bsem))
ps.sort(reverse=True)