Explain toupper and tolower and substring function in R?
This recipe explains what toupper and tolower and substring function in R
Recipe Objective
Explain toupper, tolower, substring function in R? - tolower (): converts all the characters of a string into lower case - toupper (): converts all the characters of a string into upper case - substring () : helps extract some specified substring of a character string as well as to replace substring characters in the string. This recipe demonstrates an explanation of different functions in R.
Step 1- Use tolower()
a <- "Hello World"
print(tolower(a))
"Output of the code is":"hello world"
Step 2- Use toupper()
b <- "hello world"
print(toupper(b))
"Output of the code is":"HELLO WORLD"
Step 3 - Use substring()
c <- "Hello world" # extracts a substring from the main string
print(substring(c,2,7))
"Output of the code is":"ello w"
c <- "helloyworld" # replaces y with " " in the string
substring(a,6,6)=' '
print(c)
"Output of the code is":'hello world'
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