Use mean for dff
Use mean for dff

broxtronix/thunder,broxtronix/thunder,poolio/thunder,zhwa/thunder,mikarubi/thunder,jwittenbach/thunder,kunallillaney/thunder,pearsonlab/thunder,oliverhuangchao/thunder,j-friedrich/thunder,poolio/thunder,oliverhuangchao/thunder,kcompher/thunder,j-friedrich/thunder,kcompher/thunder,zhwa/thunder,mikarubi/thunder,pearsonlab/thunder,thunder-project/thunder,kunallillaney/thunder