## Key

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D toc

Excerpt

Computes the average (mean) from all row values in a column. Input column can be of Integer or Decimal.

• If a row contains a missing or null value, it is not factored into the calculation. If the entire column contains no values, the function returns a null value.
• When used in a `pivot` transform, the function is computed for each instance of the value specified in the `group` parameter. See Pivot Transform.

For a version of this function computed over a rolling window of rows, see ROLLINGAVERAGE Function.

D s
snippet Basic

D lang syntax
RawWrangle true ref true pivot value:average(myRating) group:postal_code limit:1

average(myRating)

Output: Returns the average of the values in the `myRating` column.

D s
snippet Syntax

D lang syntax
RawWrangle true syntax true pivot value:average(function_col_ref) [group:group_col_ref] [limit:limit_count]

average(function_col_ref) [group:group_col_ref] [limit:limit_count]

ArgumentRequired?Data TypeDescription
function_col_refYstringName of column to which to apply the function

For more information on the `group` and `limit` parameters, see Pivot Transform.

D s lang notes

### function_col_ref

Name of the column the values of which you want to calculate the average. Column must contain Integer or Decimal values.

• Literal values are not supported as inputs.
• Multiple columns and wildcards are not supported.

D s
snippet usage

Required?Data TypeExample Value
YesString (column reference)`myValues`

D s
snippet Examples

### Example - Statistics on Test Scores

Include Page
 EXAMPLE - Statistical Functions EXAMPLE - Statistical Functions

D s also
label aggregate