help > RE: NBS: test_stat interpretation with FDR analysis
Jun 17, 2019  06:06 PM | Andrew Zalesky
RE: NBS: test_stat interpretation with FDR analysis
Hi Cecile,

I don't think that it is possible to have significant effects in cases when the test statistic is negative.

It is impossible for the F-statistic to be negative.

You may need to provide further details if you would like more detailed advice.

Andrew


Originally posted by Cecile Bordier:
Hi,

I am using NBS on a small group of patients and I wanted to try FDR analysis.
I wonder what represent the nbs.NBS.test_stat values when running a FDR analysis (ttest permutation 100000) .
Indeed, I am usually using the NBS analysis and so I am using the matrix as t-value (or f-value). But this time when I am extracting the value related to the significant links I am getting a range of value going from -2.2 to 5.8.

Did I misunderstood this matrix?
Am I doing something wrong?
Thanks a lot for your help.
Cc

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TitleAuthorDate
Cecile Bordier Jun 17, 2019
RE: NBS: test_stat interpretation with FDR analysis
Andrew Zalesky Jun 17, 2019
Cecile Bordier Jun 18, 2019
Andrew Zalesky Jun 18, 2019
Cecile Bordier Jun 19, 2019
Bordier Cecile Jun 24, 2019
Andrew Zalesky Jun 24, 2019
Cecile Bordier Jul 1, 2019