---
title: "2dratio"
slug: "2dratio0"
updated: 2023-03-21T12:53:53Z
published: 2023-03-21T12:53:53Z
canonical: "docs.datajet.app/2dratio0"
---

> ## 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.

# 2dratio0

2dratio0

### Divides the current row by the row that preceded it.

Requires 2 dimensions (2d)

Divides the current row by the previous row. (ratio)

**Resets** each time the first dimension changes. (0)

## Purpose

Use this function to:

- Calculate sales ratios from one month to the next
- Calculating price change ratios between transactions
- Calculate ratio of current row to previous row

## Calculation

First result in the sequence is 0 - i.e., when first dimension changes value, result for that row is 0

eg.

When dimension 1 changes from Product1 to Product2, 2dratio0 for that row resets to 0.

When dimension 2 changes from Jan2020 to Feb2020, 2dratio0 for the row is Feb2020/Jan2020

## Sample Result

![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679401987506.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 | 2dratio0 |
| 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

Sort order is important - Ascending / descending Labels/Values

## Example

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

Example use: Calculate ratio of sales from one month to the next (Month on Previous Month)

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

| #### Measure 1 - Name: = Count - Measure: = [transactions].[cid] - Function: = count - Post: = - Value: = - Axis: =0 - Plot:=Y - Resolve:= - Series Type:=Default - Popup:=Default - Prefix:= | #### Measure 2 - Name: = Month on Month - Measure: = [transactions].[cid] - Function: = count - **Post: =2dratio0** - Value: = - Axis: =0 - Plot:=Y - Resolve:= - Series Type:=Default - Popup:=Default - Prefix:= |
| --- | --- |

#### ![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679401906495.png)

#### ![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679401926471.png) ![](https://cdn.document360.io/73b6469b-c1e4-47e9-aa65-986c8ebd17ca/Images/Documentation/image-1679401936238.png)