diff_sg.m File Reference

Detailed Description

Savitzky-Golay differentiation.

There are two ways to use it:

[X_after] = diff_sg(X, [], order, porder, ncoeff);

Definition in file diff_sg.m.

Go to the source code of this file.

Functions
function	diff_sg (in X, in x, in order, in porder, in ncoeff)

Function Documentation

function diff_sg	(	in	X,
		in	x,
		in	order,
		in	porder,
		in	ncoeff
	)

[X_after, x_after] = diff_sg(X, x, order, porder, ncoeff);

First case is when second parameter (x) is passed as an []

Parameters

X	Matrix
x	x-axis values corresponding to the columns of X
order	Differential order. Accepted values: 1 or 2
porder	Polynomial order
ncoeff	Number of filter coefficients. Must be off

Returns

[X_after] or [X_after, x_after] as described above.