numpy.ma.append#
- ma.append(a, b, axis=None)[source]#
Append values to the end of an array.
New in version 1.9.0.
- Parameters:
- aarray_like
Values are appended to a copy of this array.
- barray_like
These values are appended to a copy of a. It must be of the correct shape (the same shape as a, excluding axis). If axis is not specified, b can be any shape and will be flattened before use.
- axisint, optional
The axis along which v are appended. If axis is not given, both a and b are flattened before use.
- Returns:
- appendMaskedArray
A copy of a with b appended to axis. Note that
append
does not occur in-place: a new array is allocated and filled. If axis is None, the result is a flattened array.
See also
numpy.append
Equivalent function in the top-level NumPy module.
Examples
>>> import numpy.ma as ma >>> a = ma.masked_values([1, 2, 3], 2) >>> b = ma.masked_values([[4, 5, 6], [7, 8, 9]], 7) >>> ma.append(a, b) masked_array(data=[1, --, 3, 4, 5, 6, --, 8, 9], mask=[False, True, False, False, False, False, True, False, False], fill_value=999999)