How to get first n characters from a string in R
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we are going to learn about how to get the first n characters from a string in the R language.
Getting the first n characters
To get the first n characters from a string, we can use the built-in substr() function in R.
The substr() function takes 3 arguments, the first one is a string, the second is start position, third is end position.
Here is an example, that gets the first 2 characters from a string:
name = 'orange'firstTwo = substr(name,1,2)print(firstTwo)
Output:
[1] "or"
Note: The negative values count backward from the last character.
You can also get the first 3 characters of a string like this:
name = 'orange'firstThree = substr(name,1,3)print(firstThree)
Output:
[1] "ora"
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