Sorting, searching, and counting¶

Sorting¶

`sort`(a[, axis, kind, order])	Return a sorted copy of an array.
`lexsort`(keys[, axis])	Perform an indirect stable sort using a sequence of keys.
`argsort`(a[, axis, kind, order])	Returns the indices that would sort an array.
`ndarray.sort`([axis, kind, order])	Sort an array, in-place.
`msort`(a)	Return a copy of an array sorted along the first axis.
`sort_complex`(a)	Sort a complex array using the real part first, then the imaginary part.
`partition`(a, kth[, axis, kind, order])	Return a partitioned copy of an array.
`argpartition`(a, kth[, axis, kind, order])	Perform an indirect partition along the given axis using the algorithm specified by the kind keyword.

`argmax`(a[, axis, out])	Returns the indices of the maximum values along an axis.
`nanargmax`(a[, axis])	Return the indices of the maximum values in the specified axis ignoring NaNs.
`argmin`(a[, axis, out])	Returns the indices of the minimum values along an axis.
`nanargmin`(a[, axis])	Return the indices of the minimum values in the specified axis ignoring NaNs.
`argwhere`(a)	Find the indices of array elements that are non-zero, grouped by element.
`nonzero`(a)	Return the indices of the elements that are non-zero.
`flatnonzero`(a)	Return indices that are non-zero in the flattened version of a.
`where`(condition, [x, y])	Return elements, either from x or y, depending on condition.
`searchsorted`(a, v[, side, sorter])	Find indices where elements should be inserted to maintain order.
`extract`(condition, arr)	Return the elements of an array that satisfy some condition.

count_nonzero(a[, axis]) Counts the number of non-zero values in the array a.