8000 Slightly clarify the implementation of safe_masked_invalid. by anntzer · Pull Request #15786 · matplotlib/matplotlib · GitHub
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Slightly clarify the implementation of safe_masked_invalid. #15786

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Merged
merged 1 commit into from
Nov 29, 2019
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Slightly clarify the implementation of safe_masked_invalid. #15786

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9 changes: 3 additions & 6 deletions lib/matplotlib/cbook/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -746,12 +746,9 @@ def safezip(*args):
def safe_masked_invalid(x, copy=False):
x = np.array(x, subok=True, copy=copy)
if not x.dtype.isnative:
# Note that the argument to `byteswap` is 'inplace',
# thus if we have already made a copy, do the byteswap in
# place, else make a copy with the byte order swapped.
# Be explicit that we are swapping the byte order of the dtype
x = x.byteswap(copy).newbyteorder('S')

# If we have already made a copy, do the byteswap in place, else make a
# copy with the byte order swapped.
x = x.byteswap(inplace=copy).newbyteorder('N') # Swap to native order.
try:
xm = np.ma.masked_invalid(x, copy=False)
xm.shrink_mask()
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