csf_spatial check k

src/MATLAB/+CSF/csf_spatial.m

@@ -2,8 +2,8 @@ function csf = csf_spatial(Y,idxTrue)
 
 K = length(unique(idxTrue));
 
-if size(Y,2)~=K
-    fprintf(2,'csf_spatial Y input dimensionality=%d must match K=%d',size(Y,2),K);
+if size(Y,2)<K
+    fprintf(2,'csf_spatial Y input dimensionality=%d must be >= K=%d',size(Y,2),K);
     csf_mean = nan;
     csf_std = nan;
     return;