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help > Strong connections at high thresholds
Apr 28, 2018 10:04 PM | hex_dex - AUTH
Strong connections at high thresholds
Dear Andrew,
You have been very helpful in another topic I had started but I realised that I have wrongly processed my raw data, so I started frpm the beginning. My problem now is the opposite than the last time, I get really strong connections. To be specific, I have 2 groups of interest and 2 time points. I perform a Time x Group analysis using F-test, a=0.001, I test 22 nodes and even at a very high threshold (eg 10) I get really strong connections (eg 18 nodes, 38 edges as in the picture) with p-values equal to zero. I attach a picture of a graph for a specific rhythm tested (a rhythm) and a picture of the fields I fulfill and the results of the p-values. Do you think this is normal?
Additionally when I perform FDR (50000 permutations) I get for the a rhythm results quite similar to that of a threshold=10. Does this mean that everything is ok? I attach the graph for FDR,too.
Last but not least, in order to perform a main effect of time analysis do I need to perform a t-test or am I ok with the f-test?
Thank you,
Katerina
You have been very helpful in another topic I had started but I realised that I have wrongly processed my raw data, so I started frpm the beginning. My problem now is the opposite than the last time, I get really strong connections. To be specific, I have 2 groups of interest and 2 time points. I perform a Time x Group analysis using F-test, a=0.001, I test 22 nodes and even at a very high threshold (eg 10) I get really strong connections (eg 18 nodes, 38 edges as in the picture) with p-values equal to zero. I attach a picture of a graph for a specific rhythm tested (a rhythm) and a picture of the fields I fulfill and the results of the p-values. Do you think this is normal?
Additionally when I perform FDR (50000 permutations) I get for the a rhythm results quite similar to that of a threshold=10. Does this mean that everything is ok? I attach the graph for FDR,too.
Last but not least, in order to perform a main effect of time analysis do I need to perform a t-test or am I ok with the f-test?
Thank you,
Katerina
Threaded View
Title | Author | Date |
---|---|---|
hex_dex | Apr 28, 2018 | |
hex_dex | May 3, 2018 | |
Andrew Zalesky | Apr 29, 2018 | |
hex_dex | Apr 30, 2018 | |
Andrew Zalesky | May 3, 2018 | |
hex_dex | Apr 28, 2018 | |
hex_dex | Apr 28, 2018 | |