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help > NBS- no significant result interpretation and design matrix cross-validation
Apr 20, 2018 03:04 PM | hex_dex - AUTH
NBS- no significant result interpretation and design matrix cross-validation
Hello! I am new to NBS and though I find it an amazing tool I still
am not sure I completely do understand how to set it. I have the
eeg data from 2 groups (A & B) which represent different activities
and for each group I have 2 time points (pre & post). For each
group I have the eeg of 20 people so in total, I have 40 sets of 2
time points. My connectivity matrix is 22*22*80 and my design
matrix is 80*42. Specifically, my design matrix is
Time Time*Group Regression#1 Regression#2 ... Regression #39 Regression#40
line1 0 0 1 0 0 0
line2 1 1 1 0 0 0
line3 0 0 0 1 0 0
line 4 1 1 0 1 0 0
. .
. .
. .
line 37 0 1 0 0 1 0
line 38 1 0 0 0 1 0
line 39 0 1 0 0 0 1
line 40 1 0 0 0 0 1
I want a time x group analysis and my contrast matrix is [ 0 1 0 0 ...0] which consists of 42 columns. I run an F-test. However I take no significant results and I think I am doing something wrong. Is my design matrix ok? Do you see anything wrong?
Best regards,
Katerina
Time Time*Group Regression#1 Regression#2 ... Regression #39 Regression#40
line1 0 0 1 0 0 0
line2 1 1 1 0 0 0
line3 0 0 0 1 0 0
line 4 1 1 0 1 0 0
. .
. .
. .
line 37 0 1 0 0 1 0
line 38 1 0 0 0 1 0
line 39 0 1 0 0 0 1
line 40 1 0 0 0 0 1
I want a time x group analysis and my contrast matrix is [ 0 1 0 0 ...0] which consists of 42 columns. I run an F-test. However I take no significant results and I think I am doing something wrong. Is my design matrix ok? Do you see anything wrong?
Best regards,
Katerina
Threaded View
Title | Author | Date |
---|---|---|
hex_dex | Apr 20, 2018 | |
Andrew Zalesky | Apr 22, 2018 | |
hex_dex | Apr 22, 2018 | |
Andrew Zalesky | Apr 22, 2018 | |
hex_dex | Apr 23, 2018 | |