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mfcs
2006 Oct 30
1
nlme Error: Subscript out of bounds
...evelI.data[1:2,]
Grouped Data: GMAE ~ AGE | STUDYID
STUDYID TIME SCORE INCURVES MOST FIRST AGE
19 1005 1 ACTUAL (unaided) in JAMA curves Level I Level I 49.11301
20 1005 2 ACTUAL (unaided) in JAMA curves Level I Level I 56.53745
GMFM GMFCS GMAE YRS
19 91.03394 1 74.16 4.092751
20 95.35018 1 84.05 4.711454
Here is the nlme model:
cp.grad<-deriv(~ (100/(1+exp(-L)))*(1-exp(-exp(logR)*x)), c("L", "logR"),
function(x=0:100,L,logR) NULL)
levelI.nlme<-nlme(GMAE~cp.grad(AGE,limit,lograte),...