od_rkhs -- per cluster log|x|/8

src/MATLAB/+CSF/od_rkhs.m

 % computes optimality deficiency for each xk in the rkhs
 % od = Z(x) - z(x) + log|x|
+%   log2|x| / 8 to put cardinality into bytes
+% maybe bytes is wrong? xk is in rkhs units, normalized and from ncd
 function dx = od_rkhs(xk)
 
 cx = repmat(mean(xk),size(xk,1),1);
-dx = vecnorm(cx - xk, 2, 2) + log2(size(xk,1));
+dx = vecnorm(cx - xk, 2, 2) + log2(size(xk,1))/8;
 4;