numpy.dstack(tup)[source]
Stack arrays in sequence depth wise (along third axis).
This is equivalent to concatenation along the third axis after 2-D arrays of shape (M,N) have b...
numpy.cumsum(a, axis=None, dtype=None, out=None)[source]
Return the cumulative sum of the elements along a given axis.
Parameters
aarray_like
Input array.
axisint, optional
...
numpy.sort(a, axis=-1, kind=None, order=None)[source]
Return a sorted copy of an array.
Parameters：
a:array_like
Array to be sorted.
axis:int or None, optional
Axis along w...
numpy.hstack(tup)[source]
Stack arrays in sequence horizontally (column wise).
This is equivalent to concatenation along the second axis, except for 1-D arrays where it concaten...
