[R] tables package - error message of "duplicate values"

[John Kane]

Are you sure that it is not just telling you that it cannot tabulate on a since it only has one value?

John Kane
Kingston ON Canada


> -----Original Message-----
> From: santosh2005 at gmail.com
> Sent: Fri, 19 Apr 2013 13:29:05 -0700
> To: r-help at r-project.org
> Subject: [R] tables package - error message of "duplicate values"
> 
> Dear expeRts!
> when I try summarize data using "tabular" of tables package..
> 
> here is an example..
>> a <-
> data.frame(a=rep(10,10),b=round(runif(10,10,20)),c=round(runif(10,40,50)))
>> a
>     a  b  c
> 1  10 14 44
> 2  10 17 40
> 3  10 13 40
> 4  10 18 40
> 5  10 11 49
> 6  10 16 46
> 7  10 15 43
> 8  10 19 49
> 9  10 19 49
> 10 10 13 45
>> tabular((a+1)~(n=1)+Format(dig=0)*(b + c) * (mean + sd),data=a)
> Error in term2table(rows[[i]], cols[[j]], data, n) :
>   Duplicate values: a and b
> 
> Is there a way to let the function  accept the "apparently" duplicate
> values?
> 
> Thanks,
> Santosh
> 
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> 
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