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Module « numpy.matlib »

Fonction put - module numpy.matlib

Signature de la fonction put

def put(a, ind, v, mode='raise') 

Description

help(numpy.matlib.put)

Replaces specified elements of an array with given values.

The indexing works on the flattened target array. `put` is roughly
equivalent to:

::

    a.flat[ind] = v

Parameters
----------
a : ndarray
    Target array.
ind : array_like
    Target indices, interpreted as integers.
v : array_like
    Values to place in `a` at target indices. If `v` is shorter than
    `ind` it will be repeated as necessary.
mode : {'raise', 'wrap', 'clip'}, optional
    Specifies how out-of-bounds indices will behave.

    * 'raise' -- raise an error (default)
    * 'wrap' -- wrap around
    * 'clip' -- clip to the range

    'clip' mode means that all indices that are too large are replaced
    by the index that addresses the last element along that axis. Note
    that this disables indexing with negative numbers. In 'raise' mode,
    if an exception occurs the target array may still be modified.

See Also
--------
putmask, place
put_along_axis : Put elements by matching the array and the index arrays

Examples
--------
>>> import numpy as np
>>> a = np.arange(5)
>>> np.put(a, [0, 2], [-44, -55])
>>> a
array([-44,   1, -55,   3,   4])

>>> a = np.arange(5)
>>> np.put(a, 22, -5, mode='clip')
>>> a
array([ 0,  1,  2,  3, -5])

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