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R Concatenate Elements

Concatenate Elements

You can also concatenate, or join, two or more elements, by using the paste() function.

To combine both text and a variable, R uses comma (,):


text <- "awesome"

paste("R is", text)
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You can also use , to add a variable to another variable:


text1 <- "R is"
text2 <- "awesome"

paste(text1, text2)
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For numbers, the + character works as a mathematical operator:


num1 <- 5
num2 <- 10

num1 + num2
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If you try to combine a string (text) and a number, R will give you an error:


num <- 5
text <- "Some text"

num + text


Error in num + text : non-numeric argument to binary operator
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