filter (MathScript Function) (Windows, Not in Base Package)

LabVIEW 8.5 Help
August 2007

NI Part Number:
371361D-01

»View Product Info

Syntax

y = filter(b, a, x)

[y, final] = filter(b, a, x, initial)

Applies a one-dimensional filter. filter works for vectors only.

Name	Description
b	Specifies the forward filter coefficients. b is a vector.
a	Specifies the backward filter coefficients. If the first backward filter coefficient does not equal 1, LabVIEW normalizes the elements in a by the first backward filter coefficient. a is a vector.
x	Specifies the signal to filter. x is a real or complex vector.
initial	Specifies the initial conditions. initial is a vector.

Name	Description
y	Returns the filtered signal. y is a real or complex vector.
final	Returns the final conditions. final is a vector.

x = 0:0.01:1;
b = [1];
a = [1, 1, 1];
y = filter(b, a, x)