HeatMap (JFreeChart)


This node visualizes the input data as a HeatMap. A HeatMap visualizes a matrix by coloring each entry of the matrix with a color scale. For generating the HeatMap a column of type DistanceVector or ListCell has to be selected from the input data. Alternatively, multiple numerical columns can be selected. The minimal value, found in the matrix of numbers, is mapped to the color selected as lower bound and the maximal value to the upper bound. The entries inside the range are assigned a color inside this range. If the value can't be extracted, e.g. a missing value, the corresponding block is transparent.

Input Ports

  1. Type: Data
    Data table with at least one column of type DistanceVector or ListCell

Output Ports

  1. Type: Image
    The image of the plot (SVG or PNG)


This node is part of the extension

KNIME JFreeChart


Short Link

Drag node into KNIME Analytics Platform