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Scatter Plot (JFreeChart)

KNIME JFreeChart nodes version 4.3.0.v202011191511 by KNIME AG, Zurich, Switzerland

This node visualizes the input data as scatter plot. The color and shape of the elements are retrieved from the input data table. The size of the items is determined by the option: Item size. For general settings of the generated image, see the "General Plot Options" Tab.


Scatter Plot Options

Select X column
Defines the column that contains the values for X coordinates.
Select Y column
Defines the column that contains the values for Y coordinates.
Item size
Defines the size in pixel of an item.
No. of rows to display
Use this numerical value to restrict the number of rows used for this visualization.
Auto range axis
This flag sets the focus on the plotted data: whitespace is reduced.

General Plot Options

Type of Image
The type of the created image can either be png or svg. PNGs are mostly smaller, SVGs provide details about plot and the possibility to be changed individually.
Title of Graph
The title of the graph shown above the generated image. If the title is not activated, no title will be shown.
Width of Image (in pixel)
The width of the generated image, not the plot width.
Height of Image (in pixel)
The height of the generated image, not the plot height.
Background Color
The color of the background of the image. Hence this color is used for the area behind and around the plot as well as behind potential axis and legends.
Plot Background Color
The color of the background of the plot. Hence this color is used for the empty space in a plot.
Plot Background Alpha
The transparency of the plot background can be modified using an additional alpha value. An alpha value of 1 does not change the background transparency. Decreasing the alpha value will increase the plot background transparency.
Scale Font Size
Factor changes the font sizes within the JFreeChart view. A value greater the 1 increases all view fonts, a value between 0 and 1 decrease them.

Input Ports

Data table with at least two numerical columns

Output Ports

The image of the plot (SVG or PNG)


Scatter plot
Displays a scatter plot visualization of the input data.

Best Friends (Incoming)

Best Friends (Outgoing)



To use this node in KNIME, install KNIME JFreeChart from the following update site:


A zipped version of the software site can be downloaded here.

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