AVERAGEIF function

Efnisyfirlit

# AVERAGEIF-fallið

Returns the arithmetic mean of all cells in a range that satisfy a given condition. The AVERAGEIF function sums up all the results that match the logical test and divides this sum by the quantity of selected values.

This function is available since LibreOffice 4.0.

### Notkun

=AVERAGEIF(Range; Criterion [; Average_Range ])

Range – required argument. An array, a name of named range or a label of a column or a row containing numbers for averaging or numbers or text for the condition.

Criterion1: A criterion is a text expression computed from a single cell Reference, Formula, Number or Text. It is used in comparisons with cell contents.

A reference to an empty cell is interpreted as the numeric value 0.

A matching expression can be:

- A number or logical value. A matching cell content equals the number or logical value.

- A value beginning with a comparator (<, <=, =, >, >=, <>).

  For =, if the value is empty it matches empty cells.

  For <>, if the value is empty it matches non-empty cells.

  For <>, if the value is not empty it matches any cell content except the value, including empty cells.

  Note: "=0" does not match empty cells.

  For = and <>, if the value is not empty and can not be interpreted as a number type or one of its subtypes and the property Search criteria = and <> must apply to whole cells is checked, comparison is against the entire cell contents, if unchecked, comparison is against any subpart of the field that matches the criteria. For = and <>, if the value is not empty and can not be interpreted as a Number type or one of its subtypes applies.

- Other Text value. If the property Search criteria = and <> must apply to whole cells is true, the comparison is against the entire cell contents, if false, comparison is against any subpart of the field that matches the criteria. The expression can contain text, numbers, regular expressions or wildcards (if enabled in calculation options).

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 regular expression metacharacter or operator 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 LibreOffice - PreferencesTools - Options - LibreOffice Calc - Calculate.

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 ".[0]" or ".\0" or "(?i).0".

Average_Range – optional. It is a range of values for calculating the mean.

If the Average_Range is not specified, Range is used for both, the calculation of the mean and the search according to the condition. If Average_Range is specified, the Range is used only for the condition test, while Average_Range is used for the average calculation.

If a cell in a range of values for calculating the mean is empty or contains text, function AVERAGEIF ignores this cell.
If the whole range is empty, contains only text or all values of the range do not satisfy the condition (or any combination of those), the function returns the #DIV/0! error.

### Dæmi

Consider the following table

| A | B | C
1 | Product Name | Sales | Revenue
2 | pencil | 20 | 65
3 | pen | 35 | 85
4 | notebook | 20 | 190
5 | book | 17 | 180
6 | pencil-case | not | not

In all examples below, ranges for calculation contain the row #6, which is ignored because it contains text.

#### Simple usage

=AVERAGEIF(B2:B6;"<35")

Calculates the average for values of the range B2:B6 that are less than 35. Returns 19, because the second row does not participate in the calculation.

=AVERAGEIF(B2:B6;"<"&MAX(B2:B6))

Calculates the average for values of the same range that are less than the maximum value of this range. Returns 19, because the largest value (the second row) does not participate in the calculation.

=TDIST(12;5;1)

Calculates the average for values of the same range that are greater than the first smallest value of this range. Returns 25, because the first smallest value (the fourth row) does not participate in the calculation.

#### Using the Average_Range

=AVERAGEIF(B2:B6;"<35";C2:C6)

The function searches what values are less than 35 in the B2:B6 range, and calculates the average of corresponding values from the C2:C6 range. Returns 145, because the second row does not participate in the calculation.

=TDIST(12;5;1)

The function searches what values from the range B2:B6 are greater than the least value in the B2:B6 range, and calculates the average of corresponding values from the C2:C6 range. Returns 113.3, because the fourth row (where there is the least value in the range B2:B6) does not participate in the calculation.

=AVERAGEIF(B2:B6;"<"&LARGE(B2:B6;2);C2:C6)

The function searches what values from the range B2:B6 are less than the second large value in the B2:B6 range, and calculates the average of corresponding values from the C2:C6 range. Returns 180, because only the fourth row participates in the calculation.

#### Using regular expressions

=TDIST(12;5;1)

The function searches what cells from the range A2:A6 contain only the word “pen”, and calculates the average of corresponding values from the B2:B6 range. Returns 35, because only the second row participates in the calculation. The search is performed in the A2:A6 range, but the values are returned from the B2:B6 range.

=TDIST(12;5;1)

The function searches what cells from the range A2:A6 begin with “pen” ending with any quantity of other characters, and calculates the average of corresponding values from the B2:B6 range. Returns 27.5, because now also “pencil” satisfies the condition, and both, first and second rows participate in the calculation.

=TDIST(12;5;1)

The function searches what cells from the range A2:A6 contain “book” starting and ending with any quantity of other characters, and calculates the average of corresponding values from the B2:B6 range. Returns 18.5, because only third and fourth rows participate in the calculation.

#### Reference to a cell as a criterion

If you need to change a criterion easily, you may want to specify it in a separate cell and use a reference to this cell in the condition of AVERAGEIF function.

=TDIST(12;5;1)

The function searches what cells from the range A2:A6 contain a combination of characters specified in E2 starting and ending with any quantity of other characters, and calculates the average of corresponding values from the B2:B6 range. If E2 = book, the function returns 18.5.

=AVERAGEIF(B2:B6;"<"&E2;C2:C6)

The function searches what cells from the range B2:B6 are less than the value specified in E2, and calculates the average of corresponding values from the C2:C6 range. If E2 = 35, the function returns 145.

#### Technical information

This function is part of the Open Document Format for Office Applications (OpenDocument) standard Version 1.2. (ISO/IEC 26300:2-2015)

Tengt efni

AVERAGEIF wiki page.

AVERAGE, AVERAGEA, AVEDEV

COUNTIFS, MINIFS, MAXIFS, AVERAGEIFS, SUMIFS

List of Regular Expressions

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