--- a
+++ b/combinedDeepLearningActiveContour/minFunc/logistic/mylogsumexp.m
@@ -0,0 +1,9 @@
+function lse = mylogsumexp(b)
+% does logsumexp across columns
+B = max(b,[],2);
+if issparse(b)
+    lse = log(sum(exp(b-repmat(B,[1 size(b,2)])),2))+B;
+else
+    lse = log(sum(exp(b-repmatC(B,[1 size(b,2)])),2))+B;
+end
+end
\ No newline at end of file