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Excel FILTER Function

Excel FILTER function
Summary 

The Excel FILTER function filters a range of data based on supplied criteria, and extracts matching records.

Purpose 
Filters range with given criteria
Return value 
Array of filtered values
Syntax 
=FILTER (array, include, [if_empty])
Arguments 
  • array - Range or array to filter.
  • include - Boolean array, supplied as criteria.
  • if_empty - [optional] Value to return when no results are returned.
Usage notes 

The Excel FILTER function "filters" a range of data based on supplied criteria. The result is an array of matching values the original range. When this array is the final result (i.e. the results are not handed off to another function) matching results will "spill" on to the worksheet. In simple language, the FILTER function allows you to easily extract mathing records from a larger set of source data based on criteria you provide.

The results from FILTER are dynamic. When values in the source data change, or the source data array is resized, the results from FILTER will update automatically.

Example

In the example shown, the formula in F5 is:

=FILTER(B5:D14,D5:D14=H2,"No results")

Since the value in H2 is "red", the FILTER function extracts data from array where the Group column contains "red". All matching records are returned to the worksheet starting from cell F5, where the formula exists.

Values can be hardcoded as well. The formula below has the same result as above with "red" hardcoded into the criteria:

=FILTER(B5:D14,D5:D14="red","No results")

To return nothing when no matching data is found, supply an empty string ("") for if_empty:

=FILTER(B5:D14,D5:D14=H2,"")

More than one criteria

The include argument can be extended with boolean logic. For example, to extract only data where the group is "red" and score is greater than 80, you can use a formula like this:

=FILTER(B5:D14,(D5:D14="red")*(C5:C14>80),"No results")

Building criteria with logical expressions is an elegant and flexible approach. For more examples of the kind of criteria you can construct with boolean expressions, see examples on our SUMPRODUCT function page.

Notes

  1. Filter can work with both vertical and horizontal arrays.
  2. The include argument must have a dimension compatible with the array argument, otherwise filter will return #VALUE!
  3. If the include array includes any errors, FILTER will return an error.
  4. If FILTER is used between workbooks, both workbooks must be open, otherwise FILTER will return #REF!.
Note: The FILTER function is a new "Dynamic Array Function" in Excel. It is a beta feature available only through the Office Insiders program. Dynamic Array functions are expected to be released in 2019 to Office 365 subscribers.
Related functions 
Excel UNIQUE function
Excel UNIQUE Function
The Excel UNIQUE function returns a list of unique values in a list or range. Values can be text, numbers, dates, times, etc.
Excel SORT function
Excel SORT Function

The Excel SORT function sorts the contents of a range or array. Values can be sorted by one or more columns. SORT returns a dynamic array of results.

Excel SORTBY function
Excel SORTBY Function
The Excel SORTBY function sorts the contents of a range or array based on the values from another range or array. The range or array used to sort does not need to appear in results.
Excel SEQUENCE function
Excel SEQUENCE Function

The Excel SEQUENCE function generates a list of sequential numbers in an array. The array can be one dimensional, or two-dimensional. Start and step values are arguments.

Excel RANDARRAY function
Excel RANDARRAY Function

The Excel RANDARRAY function returns an array of random numbers between 0 and 1. The size or the array is determined by rows and columns arguments.

Excel FILTER function
Excel FILTER Function

The Excel FILTER function filters a range of data based on supplied criteria, and extracts matching records.

Excel SINGLE function
Excel SINGLE Function
The Excel SINGLE function returns a single value using implicit intersection. The SINGLE function is provided for backwards compatibility with implicit intersection formulas in earlier versions of Excel.
Good links 
Microsoft FILTER function documentation

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