performs Fourier
back-transformation on power spectrum to
obtain the vector autocorrelation function (default: FALSE).
(12.2)
CLENgth=realps
provides length of correlation
function in units of psec;
it affects only the
output file (default: 10).
COUTput=filename
writes the correlation function
to the specified file.
PLENgth=real
provides the length of the
power spectrum in units of psec; it affects
only the output file, not the calculation (default: 1000).
POUTput=filename
puts the power spectrum into the
specified file.
POWER-2=integer
is an optional specification of a power
of 2 for the FFT (default: 1).
PSKIp=int
is the skip value for
the printout of the power spectrum. It does not
affect the calculation. If pskip is zero, no power spectrum is written
(default: 1).
TRIM=logical
trims the first (largest) peak
from the power spectrum if TRIM is TRUE; if a
correlation function is calculated later
and the peak was at 0, this is equivalent to shifting the long time limit
of the correlation function to 0 (
) (default: FALSE).
WINDow=( real real )
sets to zero everything in the power spectrum that is
outside the window defined by the two values in units of
psec (default: (0,1000)).