RATIO

Finds the ratio of two bands on any axis of an arbitrarily dimensioned array. This could be used in the following ways:-

• 1D array, ratioed on ENERGY gives a hardness index for a spectrum.
• 2D array, say TIME vs ENERGY. Ratio along TIME to give relative intensity or along ENERGY to give a time series of hardness values.
• 3D array, say TIME vs X,Y. Ratio on TIME to give relative intensity of two images.
• 3D array, say ENERGY vs X,Y. Ratio on ENERGY to get hardness map.
• 4D array, ENERGY vs TIME vs X,Y. Could get time sequence of hardness maps ; a relative intensity of two spectral image ranges and so on.

• Floating Point Divide by 0
• Input Output
• Method
• Normalisation
• Parameters
• Examples