Description of the program: resample

This program resamples the data with a new sampling time, which can be given as a fraction of the original one via the flag -s. This is achieved by interpolating the data locally by a polynomial of an order given by the -p flag.
Remark 1: Of course, this program only makes sense for time continous systems.
Remark 2: We did not try to implement any kind of antialiasing in frequency space. Therefore the rescaling might produce some artefacts in the power spectrum.

Usage:

resample [Options]

Everything not being a valid option will be interpreted as a potential datafile name. Given no datafile at all, means read stdin. Also - means stdin

Possible options are:

Option Description Default

-l# number of data to use whole file

-x# number of lines to be ignored 0

-c# column to be read 1

-s# new sampling time in units of the original one 0.5

-p# order of the polynomial for the interpolation 4

-o# output file name without file name: 'datafile'.rs
(or stdin.rs if stdin was used)
if no -o is given stdout is used

-V# verbosity level
0: only panic messages
1: add input/output messages 1

-h show these options none

Option	Description	Default
-l#	number of data to use	whole file
-x#	number of lines to be ignored	0
-c#	column to be read	1
-s#	new sampling time in units of the original one	0.5
-p#	order of the polynomial for the interpolation	4
-o#	output file name	without file name: 'datafile'.rs (or stdin.rs if stdin was used) if no -o is given stdout is used
-V#	verbosity level 0: only panic messages 1: add input/output messages	1
-h	show these options	none

Description of the Output:

Just one column: The resampled time series.

View the C-sources

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