1 files changed, 66 insertions, 0 deletions
diff --git a/examples/simple_measurement.hpp b/examples/simple_measurement.hpp
new file mode 100644
index 0000000..2287c58
--- /dev/null
+++ b/examples/simple_measurement.hpp
@@ -0,0 +1,66 @@
+
+#include <wolff/measurement.hpp>
+
+template <class R_t, class X_t>
+class simple_measurement : public wolff_measurement<R_t, X_t> {
+  private:
+    N_t n;
+
+    double E;
+    typename X_t::M_t M;
+    v_t C;
+
+    double totalE;
+    typename X_t::F_t totalM;
+    double totalC;
+
+  public:
+    simple_measurement(const wolff_system<R_t, X_t>& S) {
+      n = 0;
+      M = S.nv * S.s[0];
+      E = - (S.ne * S.Z(S.s[0], S.s[0]) + S.nv * S.B(S.s[0]));
+
+      totalE = 0;
+      totalM = 0.0 * (S.s[0]);
+      totalC = 0;
+    }
+
+    void pre_cluster(N_t, N_t, const wolff_system<R_t, X_t>&, v_t, const R_t&) {
+      C = 0;
+    }
+
+    void plain_bond_visited(const wolff_system<R_t, X_t>&, v_t, const X_t&, v_t, double dE) {
+      E += dE;
+    }
+
+    void ghost_bond_visited(const wolff_system<R_t, X_t>&, v_t, const X_t& s_old, const X_t& s_new, double dE) {
+      E += dE;
+      M += s_new - s_old;
+    }
+
+    void plain_site_transformed(const wolff_system<R_t, X_t>&, v_t,  const X_t&) {
+      C++;
+    }
+
+    void ghost_site_transformed(const wolff_system<R_t, X_t>&, const R_t&) {}
+
+    void post_cluster(N_t, N_t, const wolff_system<R_t, X_t>&) {
+      totalE += E;
+      totalM += M;
+      totalC += C;
+      n++;
+    }
+
+    double avgE() {
+      return totalE / n;
+    }
+
+    typename X_t::F_t avgM() {
+      return totalM / n;
+    }
+
+    double avgC() {
+      return totalC / n;
+    }
+};
+