Fitting and testing hypotheses about psychometric functions

 Psignifit allows fitting of psychometric functions to datasets while
 maintaining full control over a large number of parameters. Data
 can either be read from text files or passed through a pipe.
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 Psignifit performs the calculation of confidence intervals as well as
 goodness-of-fit tests.
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 This is the command line version.
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 Please note: This is the legacy version 2.x of psignifit.