bugfix concerning normalization of the entropies

Author: hkraemer

rqa.m

@@ -147,7 +147,7 @@
 l_prob = l_hist/sum(l_hist); % get probability distribution from histogram
 ent_Sum = (l_prob .* log(l_prob));
 if l_classes > 1
-    y(5) = -nansum(ent_Sum)/log(N);
+    y(5) = -nansum(ent_Sum)/log(N(1));
 else
     y(5) = -nansum(ent_Sum);
 end
@@ -227,7 +227,7 @@
 rt_prob = rt_hist/sum(rt_hist); % get probability distribution from histogram
 ent_Sum = (rt_prob .* log(rt_prob));
 if rt_classes > 1
-    y(11) = -nansum(ent_Sum)/log(N);
+    y(11) = -nansum(ent_Sum)/log(N(1));
 else
     y(11) = -nansum(ent_Sum);
 end