Error caused by running c_null_model_und_sign

Submitted by Chih-Hao on Thu, 06/09/2022 - 19:14

Dear All,

I get an error when I click "generate" in the Network Construction panel.

(The version of MATLAB is 2020b)

I try it several times, but it always happens, even when I don't click Calculate Graph Matrics and Raw Matrix.

To avoid any conflict between toolboxes, All toolboxes, but GraphVar, are removed.

I attach a picture for showing the details of my setting.

Very high t-values

Submitted by njl0930 on Tue, 03/15/2022 - 13:39

Dear all,

I'm getting very high t-values from the GLM (screenshot attached). I wondered if this is an issue due to my setup (also attached) or potentially something else? I also can also only export the f-values, the t-values do not seem to export when I save the results.

Any advice would be much appreciated!


Normality of Graph Metrics?

Submitted by TimesNewRoman1 on Thu, 01/16/2020 - 19:51

Hello Johann, 

I've noticed that some graph theory studies use parametric statistics and others non-parametric. I am not sure how they checked for normality of graph metrics. Is there a way in GraphVar to check the distribution of the graph metrics in order to determine whether to run parametric or non-parametric statistics?

Thanks in advance!


Normalizing "Clustering Coefficient local"

Submitted by Marieke on Tue, 12/10/2019 - 14:03

Dear all,

I want to normalize the local CC. In contrast to the global CC and global and local characteristic path length, however, I encounter the following error:

"Normalization error: some metrics derived from random networks result in zero which cannot be used for normalization."

Is there any way I can solve this? When  I look into the MATLAB file, the file truly contains several zeros. How is this possible?

Thank you so much!