search for: convergencecode

Displaying 2 results from an estimated 2 matches for "convergencecode".

2007 Oct 13
1
R API - optim
...* Copied from tests/Embedded/embeddedRCall.c: */ extern int Rf_initEmbeddedR(int argc, char *argv[]); int main() { char *argv[]= {"nmminDemo", "--gui=none", "--silent"}; const int argc = 3; double initial[1] = {1.5}; double result[1]; double value; int convergenceCode; /* * The following values are based on the help * page for optim. */ const double abstol = 1e-16; const double reltol = 1e-8; const double alpha = 1.0; /* reflection factor */ const double beta = 0.5; /* contraction factor */ const double gamm = 2.0; /* expansion factor */...
2006 Apr 13
1
bus error on calling nmmin
....) The source code and an example session: nmminDemo.c: #include <R_ext/Applic.h> #include <stdio.h> double parabola(int n, double *par, void *ex) { double xm = par[0] - 1; return xm * xm + 13; } int main() { double initial[1] = {1.5}; double result[1]; double value; int convergenceCode; const double abstol = 1e-16; const double reltol = 1e-8; const double alpha = 1.0; /* reflection factor */ const double beta = 0.5; /* contraction factor */ const double gamm = 2.0; /* expansion factor */ const int trace = 4; /* tracing on */ int fncount; const int maxit = 10000;...