KherveFitting
Open source software to fit Xray photoelectron spectroscopy (XPS) data
... single peaks or doublets. Doublet splitting values are stored in 'DS.txt'. Intensity ratios for doublets: 0.5 for p-shell, 0.67 for d-shell, 0.75 for f-shell. Each peak uses two rows: values in the first row, constraints in the second.
Check out the examples in the DATA folder
Source files:
https://github.com/gkerherve/KherveFitting