Documentation

Creates an FFT plan. Generate a plan for real or complex ffts of datasets of length timeseries_length. Acts on the static variables rplan and rplan_nel for real ffts and cplan, cplan_nel for complex ffts. Currently destroys preexisting plan for other data size. Eventually I will make the code add it to a linked list.

Returns:

s 0 if plan generated, -1 if dataset length not a power of two. or -2 if data_type not DATA_REAL or DATA_COMPLEX.

Parameters:

data_type - DATA_REAL or DATA_COMPLEX
timeseries_length - number of real or complex data points in time series

Author:

Edward Daw, June 1999