Heat Map / 2D Surface
This layer allows you to add a heat map to your current visualization. This layer can also be used to draw 2D surfaces, or gridlines, which can be used as a background when performing a visualization.
Configure a heatmap in ZENPLOT®
In order to create a heatmap in ZENPLOT®, you need to enter:
- The dataset you want to use
- The variable corresponding to the coordinates of the abscissa of the cells(X)
- The variable corresponding to the coordinates of the ordinates of the cells (Y)
The coordinates on the x-axis and on the y-axis can be qualitative or quantitative.
Customize a heat map in ZENPLOT®
You can easily customize:
- The grid (thickness, type, color)
- The color of the cells
In ZENPLOT®, you can choose two ways to customize the characteristic of an element:
By imposing a uniform style on all elements
In this case, all the cells on the layer will have the same color.
By binding the characteristic to a variable in the dataset
In this case, each cell of the layer will have a different color depending on the value it takes for the bound variable.
When binding to a qualitative variable, you must choose a color for each category of the variable.
When binding to a quantitative variable, you must define a minimum, median, and maximum value. A gradient is thus produced.
Ideas for visualizations with a heat map
Here are some ideas of visualizations in which you will use the Heat Map layer:
- Scree plot
- Heat Map
- Preference mapping