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Comment: Published by Scroll Versions from space DEV and version r0811

D toc

Excerpt

Computes the maximum value found in all row values in a column. Inputs can be Integer, Decimal, or Datetime.

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

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

Datetime inputs to this function return Unixtime values.

D s lang vs sql

D s
snippetBasic

D lang syntax
RawWrangletrue
Typeref
showNotetrue
WrangleTextpivot value:max(myRating) group:postal_code limit:1

max(myRating)

Output: Returns the maximum value of the myRating column.

D s
snippetSyntax

D lang syntax
RawWrangletrue
Typesyntax
showNotetrue
WrangleTextpivot value:max(function_col_ref) [group:group_col_ref] [limit:limit_count]

max(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 maximum. Inputs must be Integer, Decimal, or Datetime values.

Info

NOTE: If the input is in Datetime type, the output is in unixtime format. You can wrap these outputs in the DATEFORMAT function to generate the results in the appropriate Datetime format. See DATEFORMAT Function.

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

D s
snippetusage

Required?Data TypeExample Value
YesString (column reference)myValues


D s
snippetExamples

Include Page
EXAMPLE - Statistical Functions
EXAMPLE - Statistical Functions

D s also
labelaggregate