Howtosignalprocessing
How to do downsampling?
y = downsample( x , n ) decreases the sample rate of x by keeping the first sample and then every n th sample after the first. If x is a matrix, the function treats each column as a separate sequence. y = downsample( x , n , phase ) specifies the number of samples by which to offset the downsampled sequence.
What is the process of downsampling called?
The down sampling process is called decimation.
How do you downsample a data set?
Downsampling refers to removing records from majority classes in order to create a more balanced dataset. The simplest way of downsampling majority classes is by randomly removing records from that category.
