Heatmap calculation

../../../../_images/heatmap_calculation.svg

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.

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

Input ports:
in:

table

Input data

Output ports:
out:

table

Heatmap data

Configuration:
X data column: (x_data_column)
Select X axis data
Y data column: (y_data_column)
Select Y axis data
Z data column: (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 function: (reduction)
A function used on all the z data points in a bin. For “Count (histogram)” no z data column is needed.
X Bins: (x_bins)
Number of bins on the x axis
Y Bins: (y_bins)
Number of bins on the y axis
Auto range (auto_range)
When checked, use data range as histogram range
X min: (x_min)
Set minimum X value
X max: (x_max)
Set maximum X value
Y min: (y_min)
Set minimum Y value
Y max: (y_max)
Set maximum Y value
class node_heatmap_calculation.HeatmapCalculation[source]

Example flows