maximum(x1, x2, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj])

Some inconsistencies with the Dask version may exist.

Element-wise maximum of array elements.

Compare two arrays and returns a new array containing the element-wise maxima. If one of the elements being compared is a NaN, then that element is returned. If both elements are NaNs then the first is returned. The latter distinction is important for complex NaNs, which are defined as at least one of the real or imaginary parts being a NaN. The net effect is that NaNs are propagated.

Notes

The maximum is equivalent to np.where(x1 >= x2, x1, x2) when neither x1 nor x2 are nans, but it is faster and does proper broadcasting.

Parameters

x1, x2 : array_like

The arrays holding the elements to be compared. If x1.shape != x2.shape , they must be broadcastable to a common shape (which becomes the shape of the output).

out : ndarray, None, or tuple of ndarray and None, optional

A location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned. A tuple (possible only as a keyword argument) must have length equal to the number of outputs.

where : array_like, optional

This condition is broadcast over the input. At locations where the condition is True, the :None:None:`out` array will be set to the ufunc result. Elsewhere, the :None:None:`out` array will retain its original value. Note that if an uninitialized :None:None:`out` array is created via the default out=None , locations within it where the condition is False will remain uninitialized.

**kwargs :

For other keyword-only arguments, see the ufunc docs <ufuncs.kwargs> .

Returns

y : ndarray or scalar

The maximum of :None:None:`x1` and :None:None:`x2`, element-wise. This is a scalar if both :None:None:`x1` and :None:None:`x2` are scalars.

This docstring was copied from numpy.maximum.

See Also

amax

The maximum value of an array along a given axis, propagates NaNs.

amin

fmax

Element-wise maximum of two arrays, ignores NaNs.

fmin

minimum

Element-wise minimum of two arrays, propagates NaNs.

nanmax

The maximum value of an array along a given axis, ignores NaNs.

nanmin

Examples

This example is valid syntax, but we were not able to check execution

>>> np.maximum([2, 3, 4], [1, 5, 2])  # doctest: +SKIP
array([2, 5, 4])

This example is valid syntax, but we were not able to check execution

>>> np.maximum(np.eye(2), [0.5, 2]) # broadcasting  # doctest: +SKIP
array([[ 1. ,  2. ],
       [ 0.5,  2. ]])

This example is valid syntax, but we were not able to check execution

>>> np.maximum([np.nan, 0, np.nan], [0, np.nan, np.nan])  # doctest: +SKIP
array([nan, nan, nan])

This example is valid syntax, but we were not able to check execution

>>> np.maximum(np.Inf, 1)  # doctest: +SKIP
inf

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

dask.array.reductions.nanmax dask.array.ufunc.fmin dask.array.reductions.min dask.array.reductions.max dask.array.ufunc.minimum dask.array.ufunc.fmax dask.array.reductions.make_arg_reduction.<locals>.wrapped dask.array.reductions.nanmin

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