numpy.unravel_index#

numpy.unravel_index(indices,shape,order='C')#

Converts a flat index or array of flat indices into a tupleof coordinate arrays.

Parameters:
indicesarray_like

An integer array whose elements are indices into the flattenedversion of an array of dimensionsshape. Before version 1.6.0,this function accepted just one index value.

shapetuple of ints

The shape of the array to use for unravelingindices.

order{‘C’, ‘F’}, optional

Determines whether the indices should be viewed as indexing inrow-major (C-style) or column-major (Fortran-style) order.

Returns:
unraveled_coordstuple of ndarray

Each array in the tuple has the same shape as theindicesarray.

Examples

>>>importnumpyasnp>>>np.unravel_index([22,41,37],(7,6))(array([3, 6, 6]), array([4, 5, 1]))>>>np.unravel_index([31,41,13],(7,6),order='F')(array([3, 6, 6]), array([4, 5, 1]))
>>>np.unravel_index(1621,(6,7,8,9))(3, 1, 4, 1)
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