shuffledata File Reference

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Detailed Description

Randomizes the order of a data set and rewrites it.

shuffledata reads a data set into RAM and outputs it in random order. Data sets that do not fit in RAM are difficult to randomize and VFML does not have a tool to deal with such data sets.

Wish List:

for a version of this tool that works on disk and does not need to load data into RAM.

Arguments

• -f <filestem>
  • Set the stem name (default DF)
• -fout <filestem>
  • Set the name of the output dataset (default shuffled)
• -source <dir>
  • Set the directory that contains the dataset (default '.')
• -target <dir>
  • Set the directory to contain the output dataset (default '.')
• -seed <seed>
  • Sets the random seed, multiple runs with the same seed will produce the same datasets (defaults to a random seed)
• -h
  • Display usage information and exit.
• -v
  • Can be used multiple times to increase the debugging output

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