/* --------------------------------------------------------------------
 Provides a function for evaluation of kernel function. This function 
 is used in smo.c, svmclass2.c,etc.

 Statistical Pattern Recognition Toolbox, Vojtech Franc, Vaclav Hlavac (c) Czech Technical University Prague, http://cmp.felk.cvut.cz Modifications: 14-November-2001, V.Franc, sigmoid kernel 22-September-2001, V. Franc, created.-------------------------------------------------------------------- */

/* --- Exported global variables ----------------------------------- */

extern double *dataA;   /* pointer at the fist patterns */
extern double *dataB;   /* pointer at the second patterns */
extern long dim;        /* dimension of patterns */
extern int ker;         /* kernel type (0 - linear, 1 - polynom, 2 - rbf */
extern double arg1;     /* 1st argument of the kernel */
extern double arg2;     /* 2nd argument of the kernel */
extern long ker_cnt;    /* number of cernel evaluations */
/* --- Exported functions ------------------------------------------ */

/* --------------------------------------------------------------------
 Computes kernel function for a-th (dataA) and b-th (dataB)
-------------------------------------------------------------------- */
extern double kernel( long a, long b );