downsample

Syntax

output = downsample(x,n)

output = downsample(x,n,p)

Inputs

x

The signal to be downsampled. If x is a matrix, then each column is downsampled.

Type: double

Dimension: vector | matrix

n

The downsample period. Every n^th sample is retained.

Type: integer

Dimension: scalar

p

The offset to the first sample retained, within the period length.

Type: integer

Dimension: scalar

Outputs

output

The re-sampled signal.

Examples

Example with the default phase:

output = downsample([1 2 3 4 5],2)

output = [Matrix] 1 x 3
1  3  5

Example with the specified phase:

output = downsample([1 2 3 4 5],2,1)

output = [Matrix] 1 x 2
2  4