Return the minimum of a tensor or minimum along an axis.
a (array_like) – Input data.
axis (None or int or tuple of ints, optional) –
Axis or axes along which to operate. By default, flattened input is
If this is a tuple of ints, the minimum is selected over multiple axes,
instead of a single axis or all the axes as before.
out (Tensor, optional) – Alternative output tensor in which to place the result. Must
be of the same shape and buffer length as the expected output.
See doc.ufuncs (Section “Output arguments”) for more details.
keepdims (bool, optional) –
If this is set to True, the axes which are reduced are left
in the result as dimensions with size one. With this option,
the result will broadcast correctly against the input tensor.
If the default value is passed, then keepdims will not be
passed through to the amin method of sub-classes of
Tensor, however any non-default value will be. If the
sub-classes sum method does not implement keepdims any
exceptions will be raised.
combine_size (int, optional) – The number of chunks to combine.
amin – Minimum of a. If axis is None, the result is a scalar value.
If axis is given, the result is an array of dimension
a.ndim - 1.
a.ndim - 1
Tensor or scalar
The maximum value of a tensor along a given axis, propagating any NaNs.
The minimum value of a tensor along a given axis, ignoring any NaNs.
Element-wise minimum of two tensors, propagating any NaNs.
Element-wise minimum of two tensors, ignoring any NaNs.
Return the indices of the minimum values.
nanmax, maximum, fmax
NaN values are propagated, that is if at least one item is NaN, the
corresponding min value will be NaN as well. To ignore NaN values
(MATLAB behavior), please use nanmin.
Don’t use amin for element-wise comparison of 2 tensors; when
a.shape is 2, minimum(a, a) is faster than
>>> import mars.tensor as mt
>>> a = mt.arange(4).reshape((2,2))
>>> mt.amin(a).execute() # Minimum of the flattened array
>>> mt.amin(a, axis=0).execute() # Minima along the first axis
>>> mt.amin(a, axis=1).execute() # Minima along the second axis
>>> b = mt.arange(5, dtype=float)
>>> b = mt.NaN