Add diff op #37441
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Add diff op #37441
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Thanks for your contribution! |
MissPenguin
previously approved these changes
Nov 29, 2021
fuyinno4
previously approved these changes
Nov 29, 2021
|
the 3rd example's output should be [[3, 3, 3]] ? |
ok, ths, I'll fix it |
andyjiang1116
dismissed stale reviews from fuyinno4 and MissPenguin
via
2d46ee7
jeff41404
previously approved these changes
Nov 30, 2021
python/paddle/tensor/math.py
Outdated
| @@ -2611,3 +2611,166 @@ def atan2(x, y, name=None): | |||
| helper.append_op( | |||
| type='atan2', inputs=inputs, outputs={'Out': out}) | |||
| return out | |||
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| def diff(x, n=1, dim=-1, prepend=None, append=None, name=None): | |||
There was a problem hiding this comment.
in order to align to other apis, we shall use axis instand of dim
TCChenlong
reviewed
Nov 30, 2021
| out[i] = x[i+1] - x[i] | ||
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| Higher-order differences are computed by using paddle.diff() recursively. | ||
| Only n=1 is currently supported. |
Zjq9409
pushed a commit
to Zjq9409/Paddle
that referenced
this pull request
Dec 10, 2021
* add diff op, test=develop * rm some notes, test=develop * update diff doc * update sample code * fix diff api params and example code, test=develop
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PR types
New features
PR changes
OPs
Describe
add
paddle.diff()OP，support CPU and GPU.