Merge pull request #23221 from rcomer/devel-random

timhoffm · web-flow · commit c7defd7e7bce · 2022-06-08T21:20:14.000+02:00
DOC: recommend numpy random number generator class
diff --git a/doc/devel/testing.rst b/doc/devel/testing.rst
@@ -87,10 +87,12 @@ Random data in tests
 Random data is a very convenient way to generate data for examples,
 however the randomness is problematic for testing (as the tests
 must be deterministic!).  To work around this set the seed in each test.
-For numpy use::
+For numpy's default random number generator use::
 
   import numpy as np
-  np.random.seed(19680801)
+  rng = np.random.default_rng(19680801)
+
+and then use ``rng`` when generating the random numbers.
 
 The seed is John Hunter's birthday.
 
