I am trying to use the Biomarker Analysis module for multivariate ROC analysis. I used the demo dataset 1 on the website and then tried several times using the exact same parameters. However, I found that the red/blue box beside each metabolite in the Sig. Features are different each time I tried. Please see images below as I tried two times.
I am wondering what is the meaning of the red/blue box and does it represent the concentration? For example, in the demo dataset 1, I can see that glycerol is significantly higher in 0 group than 1 group. In the images above, sometimes it showed as red in 0 and sometimes it showed as blue in 0 group. Thank you!