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-rw-r--r--doc/neps/missing-data.rst6
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/neps/missing-data.rst b/doc/neps/missing-data.rst
index 2056d3661..cefd0a9d0 100644
--- a/doc/neps/missing-data.rst
+++ b/doc/neps/missing-data.rst
@@ -190,6 +190,10 @@ mask
boolean or enum array parallel to the data array is used to signal
which elements are NA or IGNORE.
+numpy.ma
+ The existing implementation of a particular form of masked arrays,
+ which is part of the NumPy codebase.
+
********************************
Missing Values as Seen in Python
********************************
@@ -602,7 +606,7 @@ value algorithms easier.
Hard Masks
==========
-The existing masked array implementation has a "hardmask" feature,
+The numpy.ma implementation has a "hardmask" feature,
which prevents values from ever being unmasked by assigning a value.
This would be an internal array flag, named something like
'arr.flags.hardmask'.