append(a, b, axis=None)[source]¶
Append values to the end of an array.
New in version 1.9.0.
- a : array_like
Values are appended to a copy of this array.
- b : array_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.
- axis : int, optional
The axis along which v are appended. If axis is not given, both a and b are flattened before use.
- append : MaskedArray
A copy of a with b appended to axis. Note that
appenddoes not occur in-place: a new array is allocated and filled. If axis is None, the result is a flattened array.
- Equivalent function in the top-level NumPy module.
>>> import numpy.ma as ma >>> a = ma.masked_values([1, 2, 3], 2) >>> b = ma.masked_values([[4, 5, 6], [7, 8, 9]], 7) >>> print(ma.append(a, b)) [1 -- 3 4 5 6 -- 8 9]