Re: [R] how to identify values from a column of a dataframe, and insert them in other data.frame with the corresponding id?

Thank you very much John, can you read it now? Hello, I'd like to do next, see if you could help me please: I have a csv called datuak with a id called calee_id and a colunm called poids. I have another csv called datuak2 with the same id called calee_id, (although there are calee_id that are in

Re: [R] how to identify values from a column of a dataframe, and insert them in other data.frame with the corresponding id?

Hi It is better to use dput for presenting data for others. You probably want ?merge. Something like merge(datuak, datuak2, by = calee_id, all.x=TRUE) However calee_id seems to be a floating point number and it may be rounded so you shall beware of it. Regards Petr Thank you very much

Re: [R] how to identify values from a column of a dataframe, and insert them in other data.frame with the corresponding id?

?merge and ?unique might help however: why is calee_id a floating point number? Ids are usually stuff thats close to a factor, integers, strings and the like, you know stuff that has a value that isn't dependant on precision. Floating points might just complicate things.. On 03.08.2012, at

Re: [R] how to identify values from a column of a dataframe, and insert them in other data.frame with the corresponding id?

Hi Nerea, For some reason your post is badl garbled and close to imposible to read. Perhaps you need to check your text encoding? Also to send sample data it is better to use the dput() command. Do dput(myfile) and then paste the results into your email Sorry not to be of more help. John