[R] new column from column in another df

If I have a data frame where a species occupies several rows with different phases such as (both col's ar factors): species,phase Populus tremula,1 Populus tremula,2 Populus tremula,3 Calluna vulgaris,1 Calluna vulgaris,2 Betula alba,1 Betula alba,2 Betula alba,3 Primula veris,1 Primula veris,2

Re: [R] new column from column in another df

fugelpitch jo...@runtimerecords.net 09-Nov-10 12:28: ...how can I create a new column in the first data frame where growth form is picked up from the second data frame (also factors) and entered into all rows for a species as follows: ?merge eg dat1 - merge(dat1,dat2) Marianne --

Re: [R] new column from column in another df

?merge df1 V1 V2 1 Populus tremula 1 2 Populus tremula 2 3 Populus tremula 3 4 Calluna vulgaris 1 5 Calluna vulgaris 2 6 Betula alba 1 7 Betula alba 2 8 Betula alba 3 9 Primula veris 1 10Primula veris 2 df2 - read.table('clipboard',