Hi,

I am trying to use NPM for my VLSM analyses. I used to perform my analyses with NPM in the past for a previous study and it worked very well. However, I do have trouble this time with my data. I can't run NPM, after selecting my .val file (and not specifying any mask), I got an error (see screenshot) each time. I checked that my nifti file are correctly normalized and that the .val file contains the same names of the nifit files, but it does not work. I also tried to rename all files to make them shorter but it did not change anything. I tried to perform the analysis in NiiStat. The test runs but it can't find any region (no region survived the threshold), event with 100 permutation, p-value of 0.05, and a minimul overlap of 1. Even with this, it can't find anaything for my 31 patients, which seems weird. I even tried to change the behavioral data with fictive ones that should obviously lead to find a region but it doesn't. Any possible explanation for this ?