# Contour

![](https://2850417076-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M4HLCK3olgduYoe3RVS%2F-M4oMvCUDQwHTJ0eWi_f%2F-M4oNBbeP5uXmKI68BYk%2Fcontour.png?generation=1586795477991003\&alt=media)

## Column Assignments

* X-Axis - Assign a column you want to show at X-Axis. You can assign any column with continuous values (number column).
* Y-Axis - Assign a column you want to show at X-Axis. You can assign any column with continuous values (number column).
* Color - Take a look at [Color](https://docs.exploratory.io/visualization/features/color-dialog) section for more details.
* Repeat By - You can assign a column to repeat the chart for each of its values. Take a look at [Repeat By](https://docs.exploratory.io/visualization/features/small-multiple) section for more details.

## Custom Function

You can use the Custom Function feature to define your own aggregation function. See [Custom Function](https://github.com/exploratory-io/book/blob/master/viz/custom-function.md) for the detail.

## 'Others' Group

If you have many categories, you can reduce the number of categories by changing some category names to 'Others' using the 'Others' Group feature. See ['Others' Group](https://docs.exploratory.io/visualization/features/others-group) for the detail.

## Show Detail

You can show the detailed data underlying the chart by clicking the chart figure. See [Show Detail](https://docs.exploratory.io/visualization/features/show-detail) for the detail.

## Layout Configuration

Take a look at [Layout Configuration](https://docs.exploratory.io/visualization/features/layout) on how to configure the layout and format.