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<pre>Dear group,
Hi I'm Jaejoong of KAIST korea</pre>
<pre>First of all, thanks for such a nice toolbox</pre>
<pre>I have a question with tail of cluster based permutation test</pre>
<pre>I compared difference between 2 conditions with test</pre>
<pre>Weird thing is, when I run test with cfg.clustertail=0; negative cluster of probability 0.038 returned, which is not significant</pre>
<pre>However, when I run test with clustertail=-1 and +1 both, negative cluster of probability of 0.021 returned, which is significant if I adjust with bonferroni correction for both positive one sied test and negative one sided test</pre>
<pre>In my understanding, probability of negative cluster above should be same.</pre>
<pre>So my question is</pre>
<pre>1) Why does probability of same negative cluster is varied by tail of permutation test?</pre>
<pre>2) Is it reasonable to run test with clustertail=+1/-1 and apply bonferroni correction for 2 tests?</pre>
<pre>I would really appreciate your comments</pre>
<pre>Sincerely</pre>
<pre>Jaejoong</pre>
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