sudy Junior India, 20170801 13:29 (edited by sudy on 20170801 13:49) Posting: # 17641 Views: 604 

Hi all, Can anyone suggest any logic on below results? Why Inter subject CV is not calculated for Cmax? Is this formula is correct to calculate between subject variability on log transformed data for two way cross over study? If i calculate manually in excel, I am getting the value around 28% for cmax. But SAS gives error. One more point i have noted that, the MSS is very low by SAS, but manually this value is very high. Why Rsquare is very low for Cmax? Edit: Category changed; see also this post #1. [Helmut] 
Helmut Hero Vienna, Austria, 20170801 14:33 @ sudy Posting: # 17642 Views: 471 

Hi sudy, next time you upload a PNG please 640px (longest side) or better only the numbers. I had a hard time to read the results. » Why Inter subject CV is not calculated for Cmax? Unless you want to deal with imaginary numbers, the square root of a negative value is not defined. Since ℯ^{(MSs – MSe)/2} = 0.994155, √–0.005845 don’t work. » Is this formula is correct to calculate between subject variability on log transformed data for two way cross over study? Yes. See there. » If i calculate manually in excel, I am getting the value around 28% for cmax. But SAS gives error. Please check what you have done in Excel. Cannot work:
100*SQRT((EXP(B1)1)) .» One more point i have noted that, the MSS is very low by SAS, but manually this value is very high. No idea. I don’t have a crystal ball which could tell me what you are doing “manually”. » Why Rsquare is very low for Cmax? Higher variability than the ones of AUCs ⇒ lower R^{2}. As expected. — All the best, Helmut Schütz The quality of responses received is directly proportional to the quality of the question asked. ☼ Science Quotes 