Loosely speaking, "decimation" is the process of reducing the sampling rate. In practice, this usually implies lowpass-filtering a signal, then throwing away some of its samples.
"Downsampling" is a more specific term which refers to just the process of throwing away samples, without the lowpass filtering operation. Throughout this FAQ, though, we'll just use the term "decimation" loosely, sometimes to mean "downsampling".
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What is the difference between the population and sample regression functions? Is this a distinction without difference?
20.9182% difference.
2.039% difference.
What is the difference between statistics and parameter
difference standard deviation of portfolio