bundles / numpy 2.5.0.dev0+git20251130.2de293a / numpy / ma / core / cumsum
function
numpy.ma.core:cumsum
source: build-install/usr/lib/python3.14/site-packages/numpy/ma/core.py :7063
Signature
def cumsum ( self , axis = None , dtype = None , out = None ) Summary
Return the cumulative sum of the array elements over the given axis.
Extended Summary
Masked values are set to 0 internally during the computation. However, their position is saved, and the result will be masked at the same locations.
Refer to numpy.cumsum for full documentation.
Notes
The mask is lost if out is not a valid ma.MaskedArray !
Arithmetic is modular when using integer types, and no error is raised on overflow.
Examples
import numpy as np marr = np.ma.array(np.arange(10), mask=[0,0,0,1,1,1,0,0,0,0]) marr.cumsum()
See also
- numpy.cumsum
equivalent function
- numpy.ndarray.cumsum
corresponding function for ndarrays
Aliases
-
numpy.ma.cumsum