/* -------------------------------------------------------------------- Evaluation of kernel functions: linear, poly, rbf, sigmoidal. About: Statistical Pattern Recognition Toolbox (C) 1999-2003, Written by Vojtech Franc and Vaclav Hlavac <a href="http://www.cvut.cz">Czech Technical University Prague</a> <a href="http://www.feld.cvut.cz">Faculty of Electrical Engineering</a> <a href="http://cmp.felk.cvut.cz">Center for Machine Perception</a> Modifications: 4-may-2004, VF 14-November-2001, V.Franc, sigmoid kernel 22-September-2001, V. Franc, created.-------------------------------------------------------------------- *//* --- Exported global variables ----------------------------------- */extern double *dataA;   /* pointer at the first pattern */extern double *dataB;   /* pointer at the second pattern */extern long dim;        /* dimension of patterns */extern int ker;         /* kernel type (0 - linear, 1 - polynom, 2 - rbf */extern double *arg1;    /* argument of the kernel */extern long ker_cnt;    /* number of kernel evaluations */extern char *kernel_name[]; /* kernel names *//* --- Exported functions ------------------------------------------ *//* -------------------------------------------------------------------- Computes kernel function for a-th (dataA) and b-th (dataB)-------------------------------------------------------------------- */extern double kernel( long a, long b );/* -------------------------------------------------------------------- Converts string kernel identifier to int.-------------------------------------------------------------------- */int kernel_id( const mxArray *prhs1 );