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added 15 characters in body

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edited Dec 4, 2013 at 12:09

Try:

data <- merge(data.jan,data.frame(ID=data.feb$ID), by="ID")

although I haven't tested it since no data, but if you just join the ID col from Feb, it should only filter out anything that isn't in both frames

Try:

data <- merge(data.jan,data.feb$ID, by="ID")

although I haven't tested it since no data, but if you just join the ID col from Feb, it should only filter out anything that isn't in both frames

Try:

data <- merge(data.jan,data.frame(ID=data.feb$ID), by="ID")

although I haven't tested it since no data, but if you just join the ID col from Feb, it should only filter out anything that isn't in both frames

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answered Dec 4, 2013 at 11:55

Try:

data <- merge(data.jan,data.feb$ID, by="ID")

although I haven't tested it since no data, but if you just join the ID col from Feb, it should only filter out anything that isn't in both frames