This tutorial shows how to configure and customize a Scatter plot layer into ZENPLOT® for your future visualizations.
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In this tutorial, we use the iris dataset.
The observations correspond to 150 Iris flowers, described by 5 variables:
- Sepal Length, quantitative variable
- Sepal Width, quantitative variable
- Petal Length, quantitative variable
- Petal Width, quantitative variable
- Species, qualitative variable: Setosa, Versicolor ou Virginica
Fisher M. (1936). The Use of Multiple Measurements in Taxonomic Problems. Annals of Eugenics, 7, pp 179 -188.
2. Configure a Scatter Plot in ZENPLOT®
To create a Scatter Plot layer, click on Add a layer and select the Scatter Plot layer.
Each observation in the dataset corresponds to a point, based on the associated X and Y coordinates.
You must enter:
- The dataset you want to use (here, iris)
- The variable corresponding to the X coordinates: a quantitative or qualitative variable
- The variable corresponding to the Y coordinates: a qualitative variable
3. Customize a Scatter Plot layer in ZENPLOT®
Once the Scatter Plot layer is created, different options are available in the options bar.
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 points of the layer will have the same style applied for that characteristic (same color, same size, or same shape, etc.)
By binding the characteristic to a variable in the dataset
In this case, all the points on the layer will have a different style for that characteristic depending on the value they take for the linked variable.
When binding to a qualitative variable, you must choose a style for each category of the variable.
When binding to a quantitative variable, it is necessary to define a minimum, median, and maximum value . A gradient is thus produced.
3.1 Layer setting
You can reconfigure your layer at any time (change datasets, variables, etc.)
3.2 Border options
3 border options are available:
- Type (this characteristic can only be linked to qualitative variable)
3.3 Filling options
3.4 Size options
3.5 Shape options
This characteristic can only be linked to a qualitative variable
3.6 Linking options
This option allows you to link the points to a precise point, by entering its X and Y coordinates.
The points can also be linked together by entering linking variables.
The links thus created have the same style as point borders.
3.7 Add labels
This option creates a new Labels layer, set by default with the same X and Y coordinates as the current layer.
For more information, see How to set up and customize a Labels layer in ZENPLOT®