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**RE: Exclude nodes from the matrix for analysis**Dec 6, 2018 06:12 AM | Marieke van der Schaaf -

*Donders Institute for Brain cognition and Behaviour*RE: Exclude nodes from the matrix for analysis

Dear Andrew,

Thank you for your quick response. I'm running the analysis with 500.000 permutations, it just takes ages... Thanks for the warning.

I replaced the excluded node-values to zero, but still nothing seems to change. I attached the nbs structures for the full matrix and selected matrix in a zip file. Can you tell me if the selection is correct? Maybe I'm just missing something?

I am interested in testing connectivity from network e.g. A (7 regions) to network A, B, C and D. This should reduce the nr of comparisons to 581 (7*84 regions) compared to 3486 when using the full matrix (84x84 regions).

For this, I kept all rows and columns of network A (see datafile attached) in the matrix and set al other edges to zero, I also tried with only keeping the rows, but that gives the same results too. I now see that e.g. all test_stats are zero for those edges that I excluded, but the size of these matrices (e.g. nbs.GLM.y or nbs.NBS.test_stat) have not changed. Is their any way I can check final number of comparisons that the program uses for correction?

Best, Marieke

Thank you for your quick response. I'm running the analysis with 500.000 permutations, it just takes ages... Thanks for the warning.

I replaced the excluded node-values to zero, but still nothing seems to change. I attached the nbs structures for the full matrix and selected matrix in a zip file. Can you tell me if the selection is correct? Maybe I'm just missing something?

I am interested in testing connectivity from network e.g. A (7 regions) to network A, B, C and D. This should reduce the nr of comparisons to 581 (7*84 regions) compared to 3486 when using the full matrix (84x84 regions).

For this, I kept all rows and columns of network A (see datafile attached) in the matrix and set al other edges to zero, I also tried with only keeping the rows, but that gives the same results too. I now see that e.g. all test_stats are zero for those edges that I excluded, but the size of these matrices (e.g. nbs.GLM.y or nbs.NBS.test_stat) have not changed. Is their any way I can check final number of comparisons that the program uses for correction?

Best, Marieke

## Threaded View

Title | Author | Date |
---|---|---|

Marieke van der Schaaf |
Dec 4, 2018 | |

Andrew Zalesky |
Dec 4, 2018 | |

Marieke van der Schaaf |
Dec 6, 2018 | |

Andrew Zalesky |
Dec 7, 2018 | |