# Documentation/Calc Functions/MATCH Under construction. For now, see the system Help files.

MATCH

## Summary:

Returns the relative position of an item in an array that matches a specified value. The function returns the position of the value found in the lookup_array as a number.

## Syntax:

MATCH(SearchCriterion; LookupArray; Type)

## Arguments:

SearchCriterion is the value which is to be searched for in the single-row or single-column array.

LookupArray is the reference searched. A lookup array can be a single row or column, or part of a single row or column.

Type may take the values 1, 0, or -1. If Type = 1 or if this optional parameter is missing, it is assumed that the first column of the search array is sorted in ascending order. If Type = -1 it is assumed that the column in sorted in descending order. This corresponds to the same function in Microsoft Excel.

If Type = 0, only exact matches are found. If the search criterion is found more than once, the function returns the index of the first matching value. Only if Type = 0 can you search for regular expressions (if enabled in calculation options) or wildcards (if enabled in calculation options).

If Type = 1 or the third parameter is missing, the index of the last value that is smaller or equal to the search criterion is returned. This applies even when the search array is not sorted. For Type = -1, the first value that is larger or equal is returned.

The search supports wildcards or regular expressions. With regular expressions enabled, you can enter "all.*", for example to find the first location of "all" followed by any characters. If you want to search for a text that is also a regular expression, you must either precede every character with a "\" character, or enclose the text into \Q...\E. You can switch the automatic evaluation of wildcards or regular expression on and off in Tools - Options - LibreOffice Calc - Calculate. warning

When using functions where one or more arguments are search criteria strings that represents a regular expression, the first attempt is to convert the string criteria to numbers. For example, ".0" will convert to 0.0 and so on. If successful, the match will not be a regular expression match but a numeric match. However, when switching to a locale where the decimal separator is not the dot makes the regular expression conversion work. To force the evaluation of the regular expression instead of a numeric expression, use some expression that can not be misread as numeric, such as "." or ".\0" or "(?i).0".

## Examples:

=MATCH(200;D1:D100) searches the area D1:D100, which is sorted by column D, for the value 200. As soon as this value is reached, the number of the row in which it was found is returned. If a higher value is found during the search in the column, the number of the previous row is returned.