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',

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

fugelpitch 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 -- Marianne Promberger PhD, Ki

[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 a