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| author | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
|---|---|---|
| committer | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
| commit | 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch) | |
| tree | 4464880c571602d54f6ae114729bf62a89518057 /math/nlfit/nlzero.gx | |
| download | iraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz | |
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'math/nlfit/nlzero.gx')
| -rw-r--r-- | math/nlfit/nlzero.gx | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/math/nlfit/nlzero.gx b/math/nlfit/nlzero.gx new file mode 100644 index 00000000..ffd1458b --- /dev/null +++ b/math/nlfit/nlzero.gx @@ -0,0 +1,38 @@ +$if (datatype == r) +include "nlfitdefr.h" +$else +include "nlfitdefd.h" +$endif + + +# NLZERO -- Zero the accumulators and reset the fitting parameter values to +# their original values set by nlinit(). + +procedure nlzero$t (nl) + +pointer nl # pointer to nl fitting structure + +int nparams # number of parameters +int nfparams # number of fitted parameters + +begin + # Get number of parameters and fitting parameters. + nparams = NL_NPARAMS(nl) + nfparams = NL_NFPARAMS(nl) + + # Clear temporary array space. + call aclr$t (ALPHA(NL_ALPHA(nl)), nfparams * nfparams) + call aclr$t (COVAR(NL_COVAR(nl)), nfparams * nfparams) + call aclr$t (CHOFAC(NL_CHOFAC(nl)), nfparams * nfparams) + call aclr$t (BETA(NL_BETA(nl)), nfparams) + + # Clear space for derivatives and trial parameter vectors. + call aclr$t (DERIV(NL_DERIV(nl)), nparams) + call aclr$t (TRY(NL_TRY(nl)), nparams) + + # Reset parameters. + call amov$t (OPARAM(NL_OPARAM(nl)), PARAM(NL_PARAM(nl)), nparams) + call aclr$t (DPARAM(NL_DPARAM(nl)), nparams) + + NL_SCATTER(nl) = PIXEL(0.0) +end |