Description of the program: av-d2
This program takes one of the output files of the d2,
c2naive programs as its input and
smoothes the content of the file by arithmetically averaging over a given
interval. Furthermore, it is possible to specify a range of embedding
dimensions to be printed. In the case of d2 output,
the application of av-d2 makes most sense on the local
slopes file (extension .d2).
Suppose the input file contained values ri and di,
then the output will be in two columns
r , ---- | d
i 2a+1 /__ j=-a i-j
where a is the argument to the -a option. We recommend
to experiment with the parameter a for optimal results.
av-d2 input-file [Options]
input-file has to be one of the files created by d2, c1
Possible options are:
||minimal dimension to print
||maximal dimension to print
||smooth over an interval of 2#+1 points
||show the length scales in rescaled units [0:1]
||units of the data
||output file name; without -o default is used |
-o without a datafile means 'filename'.av
0: only panic messages
1: add input/output messages
||show these options
Description of the Output: The output is the
same as the one from the d2 and
c2naive programs. The only
difference is that the output is smoothed.
Other post-processing for correlation sum data is available:
c2d computes local slopes
from correlation sum data (extension .c2) by fitting straight lines.
This is essentially redundant with the present program.
Takens' estimator can be obtained using
c2g provides Gaussian kernel
integrals. Both act on the correlation sum data (extension .c2).
View the C-sources.
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