strfix<-function(vec,len=max(nchar(vec))){
nch<-nchar(vec)
max<-max(nch)
if (any(nch!=max)) {
vec[nch!=max]<-paste0(strtrim(rep(paste0(rep(" ",max),collapse=''),length(which(nch!=max))),(max-nch)[nch!=max]),vec[nch!=max])
}
return=vec
}
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