Re: [R] Problem merging two data frames

2009-08-27 Thread jim holtman
FAQ 7.31 is probably the answer. If you want to try it, convert all your numerics that you want to merge on to character and round to the same value so you can "see" what is actually being matched. Comparing numerics for equality can present some challanges. On Wed, Aug 26, 2009 at 9:22 PM, Mehd

Re: [R] Problem merging two data frames

2009-08-26 Thread Mehdi Khan
Note: even if I say by=c("LON", "LAT"), it doesn't work, suggesting that number storage isn't the problem On Wed, Aug 26, 2009 at 6:19 PM, Mehdi Khan wrote: > Hello everyone, > > Merging two dataframes should be easy. However when I try to merge, R > doesn't recognize identical values, even if

[R] Problem merging two data frames

2009-08-26 Thread Mehdi Khan
Hello everyone, Merging two dataframes should be easy. However when I try to merge, R doesn't recognize identical values, even if I am doing it by values that have no decimals. willclayong: vs30 LON LAT Net X wills.cat wills.vs30 clahan.cat clahanvs30 PolyID.wills PolyID.clahan tif