---
title: "2d12ratio0"
slug: "2d12ratio0"
updated: 2023-03-21T12:40:50Z
published: 2023-03-21T12:40:51Z
canonical: "docs.datajet.app/2d12ratio0"
---

> ## 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.

# 2d12ratio0

2d12ratio0

### Divides the current row by the row that was 12 rows before it.

Requires 2 dimensions (2d)

Divides the current row by the row 12 rows before it. (12ratio)

**Resets** the row counter when dimension 1 changes. (0)

Results of first 12 rows in the sequence are 0.

## Purpose

Use this function to:

- Calculate monthly year on year figures

## Calculation

When dimension 1 changes from Product1 to Product2, 2d12ratio0 for that row would reset to 0.

When dimension 2 changes from Jan2020 to Jan2021, 2d12ratio0 for the row would be Jan2020/Jan2021

## Sample Result

![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679402332345.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 | **2d12ratio0** |
| 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

Requires 2 dimensions to calculate a ratio.

## Example

NOTE: Measure 1 is included purely for illustration. It is not necessary to include this measure for the calculation to work.

Example use: Ratio in sales from one Year to the next (Year on Previous Year)

*e.g Product Sales for Jan 2021/ Product sales for Jan 2020*

#### Dimension: [transactions].[product_group], [transactions].[yearmonth]

| #### Measure 1 - Name: = Count - Measure: = [tranasctions].[cid] - Function: =count - Post: = - Value: = - Axis: =0 - Plot:=Y - Resolve:= - Series Type:=Default - Popup:=Default - Prefix:= | #### Measure 2 - Name: = Year on Year - Measure: = [transactions].[cid] - Function: = count - **Post: = 2d12ratio0** - Value: = - Axis: =0 - Plot:=Y - Resolve:= - Series Type:=Default - Popup:=Default - Prefix:= |
| --- | --- |

#### ![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679402291207.png)

![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679402301150.png)

####