asa005, a FORTRAN90 code which evaluates the lower tail of the noncentral student's T cumulative density function (CDF), by BE Cooper.
The code is Applied Statistics Algorithm 5.
The computer code and data files described and made available on this web page are distributed under the MIT license
asa005 is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
ASA076, a FORTRAN90 code which evaluates the Owen's T function, needed to compute the CDF of the noncentral T distribution.
ASA243, a FORTRAN90 code which evaluates the CDF of the noncentral T distribution.
OWENS, a FORTRAN90 code which evaluates Owen's T function.
Original FORTRAN77 version by BE Cooper; FORTRAN90 version by John Burkardt.