void bNNI(tree *T, double **avgDistArray, int *count, double **D, int numSpecies);
//functions from NNI.c
void NNI(tree *T, double **avgDistArray, int *count, double **D, int numSpecies);
void bNNI(tree *T, double **avgDistArray, int *count, double **D, int numSpecies);
//functions from NNI.c
void NNI(tree *T, double **avgDistArray, int *count, double **D, int numSpecies);