DIM n |
Dimension of time series |
LENGTH n |
Length of time series |
RANGE m n |
For the computations only observations m to n are used. If omitted
the full time series is used. |
SUBSAMPLING n |
Definition of subsampling rate: Only every n-th value is used for the
computations. If omitted n is set to 1. |
SAMPLEFREQ f |
Sampling rate in Hz: Number of observed values per second. |
FREQ f |
All frequency domain statistics are computed for frequencies from 0
Hz to f Hz. |
SEGMENTS n |
For the estimation of the spectra the time series is partitioned
into n segments of equal length. For each segment the periodogram
is computed using the FFT and the n periodograms for the different segments
are averaged before smoothing. All subsequent steps are the same as in
the case n=1 (default). |
PATH path |
Search input files in the directory path. The default is the working
directory. |
FN ALL filename |
The time series data are read from the file filename. The components
have to be stored columnwise separated by blanks or tabs in ASCII format. |
FN n filename |
The n-th component of the series is read from file filename. To use
this command each component of the series must be stored in a different
file. This command must nor be used together with FN ALL. |
SN n string |
Specifies the name of the n-th component to be used in the plots. |
BINWIDTH f |
Width of the kernel used for averaging the periodogram. The width must
be given in percentage of the computed Fourier frequencies divided by PI. |
TAPER f |
Percentage of tapered data. |
STEP n |
To reduce the size of the PostScript plots and computing time the smoothed
periodogram is comuted at only every n-th frequency. |
TIME f |
The (partial) correlations are computed from -f to f seconds. |
CONVFACTOR f1 f2 |
The (partial) spectra are weighted by a convergence factor before the
FFT is computed to obtain the (partial) correlations. The convergence factor
is constant for frequencies less that f1Hz and monotonically decreasing
for frequencies less than f2. If omitted the convergence factor is equal
to 1 for all frequencies. |
SPEC filename |
Produce an EPS file filename of the graphs of the computed auto and
cross spectra and phase spectra. If SPEC is omitted, the output is skipped. |
PSPEC filename |
Produce an EPS file filename of the graphs of the computed partial
auto and cross spectra and partial phase spectra. If SPEC is omitted, the
output is skipped. |
COH filename |
Produce an EPS file filename of the graphs of the computed coherences
and phase spectra. If COH is omitted, the output is skipped. |
PCOH filename [ADDCOH|ADDCOHSEP] |
Produce an EPS file filename of the graphs of the computed partial
coherences and partial phase spectra. ADDCOH adds the coherences as dotted
curves. If ADDCOHSEP is used the coherences are plotted above the diagonal
and the partial phases are omitted. |
CORR filename [ADDCORR|ADDCORRSEP] |
Produce an EPS file filename of the graphs of the computed
correlations. |
PCORR filename [ADDCORR|ADDCORRSEP] |
Produce an EPS file filename of the graphs of the computed partial
correlations. ADDCOH adds the correlations as dotted curves, whereas ADDCOHSEP
adds the correlations above the diagonal. |
THRESHOLD filename [ -options ] |
Produce a text file filename which contains for each partial coherence
an integer with value 0, 1, or 2. In the case of 0 (1), the corresponding
partial coherence stays below the first (second) threshold while
in the case of 2, the partial coherence exceeds
both thresholds. The command can take two options:
h |
Include three header lines for identifying the partial coherences. |
a | Instead of overwriting the content of the
file filename, the output is appended. |
The significance levels for the two thresholds are defined in the file
default.h. If THRESHOLD is omitted, the output is skipped. |
# [text] |
Comment which has no effect |