_RL theMeanTile, theSDTile, theDel2Tile, theVolTile
theMeanTile = 0.
theMeanTile = theMeanTile + tmpVol*tmpVal
theMean = theMean + theMeanTile
_RL theMeanTile,theSDTile
theMeanTile=0.
theMeanTile=theMeanTile+tmpVal
theMean=theMean+theMeanTile