R merge by two columns

R merge columns

#Merging first_name and last_name columns to create full_name. 
union(table_name, full_name, first_name, last_name, sep = " ")
#sep is the delimiter to merge by, in this case a space.

R how to merge data frames

merge(x = df1, y = df2, by = c("Name_tag1", "Name_tag2"), all = TRUE)

Source: stackoverflow.com

R merge by two columns

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

Similar codes

0 vote248 views1 answer
Count equal values in a vector
R
0 vote283 views3 answers
Logistic regression in r
R
1 vote242 views1 answer
R convert date as timestamp
R
0 vote217 views1 answer
Attr(* label )= chr in r
R
1 vote230 views1 answer
Size of ticks labels in r ggplot
R
0 vote260 views1 answer
End the program in r
R
0 vote235 views1 answer
R seq
R
0 vote245 views1 answer
Rmarkdown how to load workspace
R
0 vote236 views1 answer
R read.csv tab delimited
R
0 vote252 views1 answer
Conditional mean statement r
R