-/* stddev.c */
-double stddev(const double *y1, const double *y2, const int n, const int df_lost);
-/* vectprt.c */
-void vectprt(const double *v, const int n, FILE *fp);
-/* vectread.c */
-int vectread(double *v, int *n, const int maxn, FILE *fp);
-/* vectsort.c */
-int vectsort(int num_vec, const int dtype, const int num_pts, char *vec1, char *vec2, char *vec3);