The following node is available in the Open Source KNIME predictive analytics and data mining platform version 2.7.1. Discover over 1000 other nodes, as well as enterprise functionality at
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Bubble Chart (JFreeChart)
This node visualizes the input data as a bubble chart. Information about how the
elements are color coded is retrieved from the input table.
Three columns have to be selected with the values x, y, R to form a bubble chart.
X and Y represent the position of the data point in the plot.
The R value is used as the radius of the points/bubbles.
For general settings of the generated
image, see the "General Plot Options" Tab.
Dialog Options
Bubble Chart Options
- Select X column
- Defines the column that contains
values for X coordinates
- Select Y column
- Defines the column that contains
values for Y coordinates
- Select R column
- Defines the column that
contains values for R coordinates / radius of the circles.
- Normalize the radius
- Boolean flag used for normalizing
radius values. If selected, the values given in the radius column are normalized.
The maximal radius takes 5% of the entire plot,
and the smallest radius takes 1% .
- 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 a focus for 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.
Ports
Input Ports
0 |
Data table with three numerical columns |
Output Ports
0 |
The image of the plot (SVG or PNG) |
Views
- Bubble plot
-
Display a bubble plot of the input data.
This node is contained in KNIME JFreeChart nodes
provided by KNIME GmbH, Konstanz, Germany.