"r merge by two columns" Code Answer's
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r how to merge data frames
Successful Sloth
on Oct 22, 2020
merge(x = df1, y = df2, by = c("Name_tag1", "Name_tag2"), all = TRUE)Source: stackoverflow.com
r merge by two columns
Strange Snake
on Mar 26, 2020
x <- data.frame(k1=c(NA,NA,3,4,5), k2=c(1,NA,NA,4,5), data=1:5)
y <- data.frame(k1=c(NA,2,NA,4,5), k2=c(NA,NA,3,4,5), data=1:5)
merge(x, y, by=c("k1","k2"))Source: stackoverflow.com
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