Heatmap calculation

This node calculates a 2D histogram or other heatmap of a given signal.

The output consists of bin edges and bin values and can for instance be used in a heatmap plot in the node Figure from Table.

This node ignores any rows in the input where one or more of the selected columns are masked.

Ports:

Inputs:

in:

table

Input data

Outputs:

out:

table

Heatmap data

Configuration:

x_data_column

Select X axis data

y_data_column

Select Y axis data

z_data_column

The data points of the z data are placed in bins according to the cooresponding values of x and y. They are then reduced to a single bin value using the selected reduction function. For “Count (histogram)” no z data column is needed.

reduction

A function used on all the z data points in a bin. For “Count (histogram)” no z data column is needed.

x_bins

Number of bins on the x axis

y_bins

Number of bins on the y axis

auto_range

When checked, use data range as histogram range

x_min

Set minimum X value

x_max

Set maximum X value

y_min

Set minimum Y value

y_max

Set maximum Y value

class node_heatmap_calculation.HeatmapCalculation