[R] Code that works when run as straight code, but that fails when run as a function

[Rui Barradas]

Hello,

Inline.

Às 20:45 de 23/08/19, Sorkin, John escreveu:
> I have code that works perfectly when run as in-line code, but that fails when the code is put into a function with the following message:
> Error in contest1D.lmerModLmerTest(model, ll, rhs = rhs, ddf = ddf, confint = confint, :
> length(L) == length(model using beta) is not TRUE
> 
> Why does moving the code to a function lead to an error? What can I do to avoid the error?
> Thank you,
> John
> 
> In-line code:
> fit2aCort <- lmer(SBP~age+jFStage+AHIgt5+jFStage*AHIgt5+(1|patid),data=alldata)
> 
> c1 <-c(1,  5.99,  1, 0,   0,  1, 0 )
> c2 <-c(1,  5.99,  0, 1,   0,  0, 1 )
> 
> model <- fit2aCort
> s1a <- contest(model,L=c1,joint=FALSE)
> s1as1E <- s1a$Estimate
> 
> s2a <- contest(model,L=c2,joint=FALSE)
> s2E <- s2a$Estimate
> 
> Time <- c(1,2)
> SBP  <- c(s1E,s2E)
> plot(Time,SBP)
> title("Predicted Sys SBP, age 5.99 yr (SS 524 obs with BP 190mmHg removed)")
> plotCI(Time,SBP,uiw=1.96*c(s1a$"Std. Error",s2a$"Std. Error"))
> 
> 
> Code put into a function that fails:
> plotit <- function(c1,c2,model)
> {
> s1a <- contest(model,L=c1,joint=FALSE)
> s1as1E <- s1a$Estimate
> 
> s2a <- contest(model,L=c2,joint=FALSE)
> s2E <- s2a$Estimate

Is s1as1E a typo? The way you define and use s2E suggests that it should be

s1E <- s1a$Estimate


Hope this helps,

Rui Barradas

> 
> Time <- c(1,2)
> SBP  <- c(s1E,s2E)
> plot(Time,SBP)
> title("Predicted Sys SBP, age 5.99 yr (SS 524 obs with BP 190mmHg removed)")
> plotCI(Time,SBP,uiw=1.96*c(s1a$"Std. Error",s2a$"Std. Error"))
> }
> 
> fit2aCort <- lmer(SBP~age+jFStage+AHIgt5+jFStage*AHIgt5+(1|patid),data=alldata)
> 
> c1 <-c(1,  5.99,  1, 0,   0,  1, 0 )
> c2 <-c(1,  5.99,  0, 1,   0,  0, 1 )
> plotit(c1,c2,fit2aCort)
> 
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> 
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