DST

Purpose:

Calculates the Discrete Sine Transform.

DST(series, n)

series	-	A series or table.
n	-	Optional. An integer, the transform length. Defaults to length(series).

A series or array.

dst(gsin(1000, 1/1000, 20))

returns a series with a split peak about 20 Hz.

dst(gsin(1000, 1/1000, 20), 8192)

Same as above, but the input is zero padded to length 8192 before the DST is calculated.

The discrete sine transform is define as:

The DST returns a real result for a real input series.

The transform is applied to each column if the input is an array. See IDST to compute the inverse discrete sine transform.