[R] Error in Aggregate

Hi My dataframe looks like this data= id V1 V2 V3 V4 1 5 6 7 8 1 10 20 30 40 2 23 54 54 6 3 43 54 54 33 4 12 34 54 54 4 34 54 23 52 I have to sum by id I used command aggregate(data,by =list(data$id),FUN=sum) Error i face is Error in Summary.factor(c(1L, 1L, 1L, 1L, 1L), na.rm =

Re: [R] Error in Aggregate

The error message is clear: your problem is that your data.frame (note the period) contains factors. Use str(data) -- also don't use data as it's a function name -- to see which ones and change as appropriate. Michael On Wed, Feb 29, 2012 at 7:16 AM, arunkumar akpbond...@gmail.com wrote: Hi

[R] Error in Aggregate function

Hi, When I run the Aggregate function in repeat loop, I got the following error: Error in sort.list(unique.default(x), na.last = TRUE) : 'x' must be atomic for 'sort.list' Have you called 'sort' on a list? How to solve this error. Anyone can help me. Urgent. Thanks. Meenakshi. -- View