[R] plot in package psych with function error.bars.by

[Tham Tran]

Hi William,

I've just updated your latest package "psych_1.4.6.11.zip" from server
"personality-project/r/src/contrib/". One time the updating process was
finished, i tried to run based samples code:

require(psych)
keys.list=list(Agree=c(-1,2:5),Conscientious=c(6:8,-9,-10),Extraversion=c(-11,-12,13:15),Neuroticism=c(16:20),Openness
= c(21,-22,23,24,-25))
keys = make.keys(28,keys.list,item.labels=colnames(bfi))
scores = scoreItems(keys,bfi,min=1,max=6) 
error.bars.by(scores$scores,round(bfi$age/10)*10,by.var=TRUE,main="BFI age
trends",legend=3,labels=colnames(scores$scores),xlab="Age",ylab="Mean item
score")

then i had an error following: 

Erreur dans if (del == 0 && to == 0) return(to) : 
  valeur manquante là où TRUE / FALSE est requis
De plus : Messages d'avis :
1: In qt(1 - alpha/2, group.stats[[g]]$n - 1) : production de NaN
2: In dt(ln, n - 1) : production de NaN
3: In qt(alpha/2, n - 1) : production de NaN

Could you tell me how to fix these issues? May i had a mistake of updating
your lasted package?

Sincerly
Tham






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