Small numbers (
) of time bins may be analyzed directly from
the output of ltcurv.
input file: rp90_ltc.tab
output files: rp90_fft.tab, rp90_ftp.tab, rp90_pwr.tab
xt> fft
Input source file (table or timsorted qpoe file): rp90_ltc
root name for output file [root_fft(ftp,pwr).tab]: . # will assign root name
or rp90
Input table column heading: src # label of column giving number of counts
FFT done with 512 bins!
Creating raw fft output file: rp90_fft.tab # columns:
# freq, rfreq, ifreq, power, normpower
Creating histogram output file: rp90_ftp.tab # columns: logel, phist
Creating fft power output file: rp90_pwr.tab # columns:
# bin, freq, power, normpower
xt>
To list only significant coefficients, run timprint as in .6 with the _pwr.tab file as input.