numpy 1.22.4 Pypi GitHub Homepage
Other Docs
NotesParametersReturns
ravel_multi_index(multi_index, dims, mode='raise', order='C')

Notes

versionadded

Parameters

multi_index : tuple of array_like

A tuple of integer arrays, one array for each dimension.

dims : tuple of ints

The shape of array into which the indices from multi_index apply.

mode : {'raise', 'wrap', 'clip'}, optional

Specifies how out-of-bounds indices are handled. Can specify either one mode or a tuple of modes, one mode per index.

  • 'raise' -- raise an error (default)

  • 'wrap' -- wrap around

  • 'clip' -- clip to the range

In 'clip' mode, a negative index which would normally wrap will clip to 0 instead.

order : {'C', 'F'}, optional

Determines whether the multi-index should be viewed as indexing in row-major (C-style) or column-major (Fortran-style) order.

Returns

raveled_indices : ndarray

An array of indices into the flattened version of an array of dimensions dims .

Converts a tuple of index arrays into an array of flat indices, applying boundary modes to the multi-index.

See Also

unravel_index

Examples

>>> arr = np.array([[3,6,6],[4,5,1]])
... np.ravel_multi_index(arr, (7,6)) array([22, 41, 37])
>>> np.ravel_multi_index(arr, (7,6), order='F')
array([31, 41, 13])
>>> np.ravel_multi_index(arr, (4,6), mode='clip')
array([22, 23, 19])
>>> np.ravel_multi_index(arr, (4,4), mode=('clip','wrap'))
array([12, 13, 13])
>>> np.ravel_multi_index((3,1,4,1), (6,7,8,9))
1621
See :

Local connectivity graph

Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.

Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)

SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them


GitHub : None#None
type: <class 'builtin_function_or_method'>
Commit: