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.

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 |

View the C-sources

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