np.diff

Calculate the n-th discrete difference along the given axis.

Syntax

np.diff(a, n?, axis?)

Description

Calculate the n-th discrete difference along the given axis. The first difference is given by out[i] = a[i+1] - a[i] along the given axis, higher differences are calculated by using diff recursively.

Parameters

Name	Description
a	- Input array
n(optional)	- The number of times values are differenced. If zero, the input is returned as-is.
axis(optional)	- The axis along which the difference is taken, default is the last axis.

Returns

Promise<NDArray>