On 01/07/2010 11:02 PM, Sean O'Riordain wrote:
Good morning,
Is there a way to get table() to default to including NAs - as in...
table(..., useNA='ifany') or table(..., useNA='always') or table(...,
exclude=NULL) ?
I can't see a way under table() or options() or searching the archives
(probably using the wrong keyword?).
t1<- c(1,2,3,3,3,2,NA,NA,NA,NA)
table(t1)
t1
1 2 3
1 2 3
I keep forgetting to allow for NAs and I was bitten *again* this
morning... ideally I'd like to be able to set a default in my profile
so that table(t1) will actually do table(t1, exclude=NULL) or
table(t1, useNA='ifany')
I could say something like..
tab1<- function(t, ...) { table(t, ..., useNA='ifany') }
tab1(t1)
t
1 2 3<NA>
1 2 3 4
but this names it as 't' instead of 't1' which is ugly?
Any other suggestions please?
Hi Sean,
I have managed to get rid of the ugly "t" with this:
tableNA<-function(x) {
varname<-deparse(substitute(x))
assign(varname,x)
tabNA<-table(get(varname),useNA="always")
names(attr(tabNA,"dimnames"))<-varname
return(tabNA)
}
Seems a long way round the paddock.
Jim
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