Re: [R] How to group by then count?

2015-01-06 Thread Marc Schwartz
> On Jan 6, 2015, at 3:29 PM, Monnand wrote: > > Thank you, all! Your replies are very useful, especially Don's explanation! > > One complaint I have is: the function name (talbe) is really not very > informative. Why not? You used the word 'table' in your original post, except as Don noted,

Re: [R] How to group by then count?

2015-01-06 Thread Monnand
Thank you, all! Your replies are very useful, especially Don's explanation! One complaint I have is: the function name (talbe) is really not very informative. On Sun Jan 04 2015 at 5:03:47 PM MacQueen, Don wrote: > This seems to me to be a case where thinking in terms of computer > programming

Re: [R] How to group by then count?

2015-01-04 Thread MacQueen, Don
This seems to me to be a case where thinking in terms of computer programming concepts is getting in the way a bit. Approach it as a data analysis task; the S language (upon which R is based) is designed in part for data analysis so there is a function that does most of the job for you. (I changed

Re: [R] How to group by then count?

2015-01-04 Thread Christian Brandstätter
Dear Monnad, one possible way would be to use as.factor() and in the summary you would get counts for every level. Like this: x = c("1", "1", "2", "1", "5", "2") summary(as.factor(x)) Cheers, Christian > Hi all, > > I thought this was a very naive problem but I have not found any solution

Re: [R] How to group by then count?

2015-01-04 Thread Berend Hasselman
> On 04-01-2015, at 10:02, Monnand wrote: > > Hi all, > > I thought this was a very naive problem but I have not found any solution > which is idiomatic to R. > > The problem is like this: > > Assuming we have vector of strings: > x = c("1", "1", "2", "1", "5", "2") > > We want to count numb