1 files changed, 8 insertions, 0 deletions
diff --git a/lib/cluster.h b/lib/cluster.h
index 2de17e5..d118735 100644
--- a/lib/cluster.h
+++ b/lib/cluster.h
@@ -22,6 +22,7 @@
 #include "orthogonal.h"
 #include "dihedral.h"
 #include "dihinf.h"
+#include "yule_walker.h"
 
 typedef struct {
   graph_t *g;
@@ -62,6 +63,13 @@ typedef struct {
   q_t n;
 } vector_state_t;
 
+typedef enum {
+  VECTOR,
+  MODULATED,
+  CUBIC,
+  QUADRATIC
+} vector_field_t;
+
 v_t flip_cluster(ising_state_t *s, v_t v0, q_t s1, gsl_rng *r);
 
 v_t flip_cluster_vector(vector_state_t *s, v_t v0, double *rot, gsl_rng *r);