is COD influent f stat what does fstat mean in r what model is cod in r what is the r squared model of a gas and flow rate what is the difference in gas flow and cod how to interpret f stat what is the p value of mod2 in r what's the average p value for f stat comparing r squared and f stat r squared vs f stat comparing r squared with f stat what is the difference between f and r squared what model does f stat compare to what is the difference between the r squared equation and the f stat what is the equation for calculating the r squared comparing r squared and f stat what is cod r squared and f stat which r statistic is used when a gas  flow and codin are used to compare what is the difference between r squared and df stat gas flow model in r