Updating R strings

The characters, as well as substrings of a string, can be manipulated to new string values. The changes are reflected in the original string. In R, the string values can be updated in the following way:

substr (..., start, end) <- newstring
substring (..., start, end) <- newstring

Output

"Hello, Universe!"

Multiple strings can be updated at once, with the start <= end.

• If the length of the substring is larger than the new string, only the portion of the substring equal to the length of the new string is replaced.
• If the length of the substring is smaller than the new string, the position of the substring is replaced with the corresponding new string values.

Strings are a bunch of character variables. It is a one-dimensional array of characters. One or more characters enclosed in a pair of matching single or double quotes can be considered a string in R. Strings in R Programming represent textual content and can contain numbers, spaces, and special characters. An empty string is represented by using “. R Strings are always stored as double-quoted values. A double-quoted string can contain single quotes within it. Single-quoted strings can’t contain single quotes. Similarly, double quotes can’t be surrounded by double quotes.