Nothing
# functions to generate some random catgegorical edits.
# make a set expression
setexpr <- function(var,cats){
paste(var,'%in% c(',paste(cats,collapse=","),')')
}
# declare a subset FALSE
makeedit <- function(setexpr){
paste('if (',setexpr,') FALSE')
}
# generate m random edits
genedits <- function(m,group){
require(editrules)
# use Boskovitz group A or B edits
if ( group=='A' ){
dk <- c(
x.2.1 = 2,
x.2.2 = 2,
x.3.1 = 3,
x.3.2 = 3,
x.4.1 = 4,
x.4.2 = 4,
x.5.1 = 5,
x.5.2 = 5,
x.6.1 = 6,
x.6.2 = 6,
x.7.1 = 7,
x.7.1 = 7,
x.8.1 = 8
)
} else if (group=='B') {
dk <- c(
x.2.1 = 2,
x.2.2 = 2,
x.3.1 = 3,
x.4.2 = 4,
x.5.1 = 5,
x.6.1 = 6,
x.7.1 = 7,
x.8.1 = 8,
x.9.1 = 9,
x.10.1 = 10
)
}
vars <- names(dk)
dm <- c()
for ( v in vars ) dm <- c(dm,setexpr(v,1:dk[v]))
# generate random edits
n <- length(dk)
edits <- character(m)
for ( i in 1:m ){
invar <- sample(2:n,1)
ivars <- sample(vars,invar,replace=FALSE)
if ( i > 1 && !ivars1[1] %in% ivars ) ivars <- c(ivars,ivars[1])
ivars1 <- ivars
s <- character()
for ( iv in ivars ){
incat <- sample(1:(dk[iv]-1),1)
icats <- sample(1:dk[iv],incat)
s <- c(s,setexpr(iv,icats))
}
edits[i] <- makeedit(paste(s,collapse=" & "))
}
editarray(c(dm,edits))
}
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