toms344

toms344, a FORTRAN77 code which implements ACM toms algorithm 344, for evaluating Student's T distribution.

The text of many ACM toms algorithms is available online through ACM: http://www.acm.org/pubs/calgo or NETLIB: http://www.netlib.org/toms/index.html.

Usage:

call ttest ( t, df, ans, kerr )
where T is the argument, DF is the (integer) number of degrees of freedom, ANS is output as the value of Student's T distribution, and KERR is an error code which is 0 for successful computation.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

toms344 is available in a FORTRAN77 version.

Related Data and Programs:

toms344_test

dcdflib, a FORTRAN90 library which evaluates many statistical distributions.

PROB, a FORTRAN90 library which evaluates many statistical distributions.

TEST_VALUES, a FORTRAN77 library which includes selected tabulated values of many mathematical functions.

Reference:

  1. David Levine,
    Algorithm 344: Student's T-Distribution,
    Communications of the ACM,
    Volume 11, Number 1, pages 37-38, January 1969.

Source Code:

Last revised on 09 November 2023.