√x, where x<0 [General Statistics]
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.
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.
Yes. See there.
Please check what you have done in Excel. Cannot work:
No idea. I don’t have a crystal ball which could tell me what you are doing “manually”.
Higher variability than the ones of AUCs ⇒ lower R2. As expected.
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:
A1 0.06596695
B1 0.07769188
C1 =(A1-B1)/2
D1 =EXP(C1)
E1 =D1-1
F1 =100*SQRT(E1)
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 R-square is very low for Cmax?
Higher variability than the ones of AUCs ⇒ lower R2. As expected.
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Dif-tor heh smusma 🖖🏼 Довге життя Україна!
![[image]](https://static.bebac.at/pics/Blue_and_yellow_ribbon_UA.png)
Helmut Schütz
![[image]](https://static.bebac.at/img/CC by.png)
The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes
Complete thread:
- Inter subject CV calculation sudy 2017-08-01 13:29 [General Statistics]
- √x, where x<0Helmut 2017-08-01 14:33