HBins

• Class helper for 1-d binning. It works with equal- and variable-size binning schemes, has simplest possible initialization and allows to retrieve all possible information about bins like edges, centers, widths, etc. Also it has methods for fast conversion of the input array of values into histogram indexes. This class is used as binning descriptor for other histogram types.
• Doc: HBins

HPolar

• 2-d polar histogram for n-d array. It involves pixel coordinate arrays to convert n-d array to 2-d image and sort them for bins. This class is inherited in implementation of the Radial Background Subtraction Algorithm.
• Doc: HPolar

HSpectrum

• Spectral histogram for n-d array (like imaging array).
• Doc: HSpectrum

References

• HBins
• HPolar, Radial Background Subtraction Algorithm
• HSpectrum