--- title: "2dseq" slug: "2dseq" updated: 2023-03-21T12:19:45Z published: 2023-03-21T12:19:45Z canonical: "docs.datajet.app/2dseq" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.datajet.app/llms.txt > Use this file to discover all available pages before exploring further. # 2dseq 2dseq ### Returns an increment of the number of rows since dimension 1 changed Requires 2 dimensions (2d) (Otherwise will always return 1.00) Increments each row (seq) ## Purpose Use this function to: - Index items within subgroups ### Sample Result ![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679401089261.png) ### Parameters | Parameter | Description | | --- | --- | | Dimensions | Discrete field(s). All fields must come from the same table. | | Name | Name to be displayed as Column Header in result grid | | Measure | The field to be used in the post-function calculation. - Must be numeric if Function is anything other than COUNT. - Must come from same table as DIMENSIONS. - Supports Discrete or Continuous DataTypes. | | Function | COUNT / SUM / AVG / MIN / MAX / STDEV | | Post | 2dseq | | Value | Optional. Filter to apply when evaluating FUNCTION. Only records in the Filter Recordset will be included in the Function and Post-Function calculations. Must come from same table as DIMENSION/MEASURE or be linked to the Dimension table. | | Axis | 0 / 1. Y-Axis to use when plotting graph. Default = 0 | | Plot | Y / N. Specifies whether measure’s output column should be plotted on graph. Default = Y | | Resolve | Optional. Resolve level for the measure. If blank, Resolve = Dimension Table | | Series Type | Default / Bar / Stacked Bar / Line / Spline / RangeLow / RangeHigh / CSLow / CSHigh / CSOpen / CSClose Determines the graph style for the measure. | | Popup | Default / None / Extended | | Prefix | $ / £ / E / % | ## Usage Notes Returns a decimal. ## Example NOTE: Measure 1 is included purely for illustration. It is not necessary to include this measure for the calculation to work. Example use: Give each product within a product group an index #### Dimension:[transactions].[product_group], [transactions].[product_ID] | #### Measure 1 - Name: = Occupations - Measure: = transactions.cid - Function: = count - Post: = - Value: = - Axis: =0 - Plot:=Y - Resolve:= - Series Type:=Default - Popup:=Default - Prefix:= | #### Measure 2 - Name: =Index - Measure: = transactions.cid - Function: = count - Post: = 2dseq - Value: = - Axis: =0 - Plot:=Y - Resolve:= - Series Type:=Default - Popup:=Default - Prefix:= | | --- | --- | #### ![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679401064708.png) ![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679401072135.png) ####