Merge pull request #336 from effigies/benchmark_ranges

MRG: Fix benchmark range bounds

Fix minus sign in random number limits in benchmarks.

Author: matthew-brett

nibabel/benchmarks/bench_array_to_file.py

@@ -50,7 +50,7 @@ def bench_array_to_file():
     mtime = measure('array_to_file(arr, BytesIO(), np.int16)', repeat)
     print('%30s %6.2f' % ('Save float64 to int16, infs', mtime))
     # Int16 input, float output
-    arr = np.random.random_integers(low=-1000,high=-1000, size=img_shape)
+    arr = np.random.random_integers(low=-1000, high=1000, size=img_shape)
     arr = arr.astype(np.int16)
     mtime = measure('array_to_file(arr, BytesIO(), np.float32)', repeat)
     print('%30s %6.2f' % ('Save Int16 to float32', mtime))

nibabel/benchmarks/bench_finite_range.py

@@ -42,7 +42,7 @@ def bench_finite_range():
     mtime = measure('finite_range(arr)', repeat)
     print('%30s %6.2f' % ('float64 many infs', mtime))
     # Int16 input, float output
-    arr = np.random.random_integers(low=-1000,high=-1000, size=img_shape)
+    arr = np.random.random_integers(low=-1000, high=1000, size=img_shape)
     arr = arr.astype(np.int16)
     mtime = measure('finite_range(arr)', repeat)
     print('%30s %6.2f' % ('int16', mtime))

nibabel/benchmarks/bench_load_save.py

@@ -56,7 +56,7 @@ def bench_load_save():
     mtime = measure('img.from_file_map(img.file_map)', repeat)
     print('%30s %6.2f' % ('Load from int16, NaNs', mtime))
     # Int16 input, float output
-    arr = np.random.random_integers(low=-1000,high=-1000, size=img_shape)
+    arr = np.random.random_integers(low=-1000, high=1000, size=img_shape)
     arr = arr.astype(np.int16)
     img = Nifti1Image(arr, np.eye(4))
     sio = BytesIO()