Mercurial > octave
view liboctave/external/ranlib/genchi.f @ 23434:f4d4d83f15c5
maint: rename cruft/ directory to external/
* liboctave/external: Renamed from liboctave/cruft.
*
* configure.ac: Rename XTRA_CRUFT_SH_LDFLAGS to XTRA_EXTERNAL_SH_LDFLAGS.
Rename CRUFT_DLL_DEFS to EXTERNAL_DLL_DEFS.
* install.txi: Update documentation to refer to liboctave/external.
* HACKING: Update explanation of directory tree.
* liboctave/module.mk: Update build system to include liboctave/external
* liboctave/numeric/module.mk: Update CPPFLAGS to find Faddeeva in external/
directory.
* lo-blas-proto.h, lo-lapack-proto.h: Update comments which referred to cruft
directory.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 24 Apr 2017 21:03:38 -0700 |
parents | liboctave/cruft/ranlib/genchi.f@648dabbb4c6b |
children |
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REAL FUNCTION genchi(df) C********************************************************************** C C REAL FUNCTION GENCHI( DF ) C Generate random value of CHIsquare variable C C C Function C C C Generates random deviate from the distribution of a chisquare C with DF degrees of freedom random variable. C C C Arguments C C C DF --> Degrees of freedom of the chisquare C (Must be positive) C REAL DF C C C Method C C C Uses relation between chisquare and gamma. C C********************************************************************** C .. Scalar Arguments .. REAL df C .. C .. External Functions .. C REAL gengam C EXTERNAL gengam REAL sgamma EXTERNAL sgamma C .. C .. Executable Statements .. IF (.NOT. (df.LE.0.0)) GO TO 10 WRITE (*,*) 'DF <= 0 in GENCHI - ABORT' WRITE (*,*) 'Value of DF: ',df CALL XSTOPX ('DF <= 0 in GENCHI - ABORT') C JJV changed this to call sgamma directly C 10 genchi = 2.0*gengam(1.0,df/2.0) 10 genchi = 2.0*sgamma(df/2.0) RETURN END