strsect¶
Purpose¶
Extracts a substring of a string.
Format¶
-
y =
strsect(str, start[, len])¶ - Parameters:
str (string, scalar, string array, or dataframe where all column types are a string or category.) – data from which the string segment is to be obtained.
start (scalar) – the index of the substring in str. The index of the first character is 1. A negative start value will use a start position that many characters from the end of the string.
len (scalar) – Optional. The length of the substring. If not provided, will select text to the end of the string.
- Returns:
y (string) – the extracted substring, or a null string if start is greater than the length of str or less than 0.
Examples¶
// String to search in
strng = "This is an example string.";
// Remove section of string
y = strsect(strng, 12, 7);
The above code assigns the variable y to be:
example
Remarks¶
If there are not enough characters in a string for the defined substring to be extracted, then a short string or a null string will be returned.
If str is a matrix containing character data, it must be scalar.
See also
Functions strlen(), strindx(), strrindx(), strreplace()