Makes the spectrum image "bss_spectra[0]" and the single spectra in "mlls_objects" the same lengths.

make_signals_equal_length.py

# Make signal starting point and length equal
signal_min = bss_spectra[0].axes_manager[-1].axis.min() # This is a float
signal_shortest_len = len(bss_spectra[0].axes_manager[-1].axis) # This is an int

# Get largest value of s
for s in mlls_objects:
    if s.axes_manager[0].axis.min() > signal_min:
        signal_min = s.axes_manager[0].axis.min()

# Crop all the spectra to start at the same energy index
for i in range(len(mlls_objects)):
    mlls_objects[i].crop_spectrum(signal_min, None)
bss_spectra[0].crop_spectrum(signal_min, None)

# Get shortest length of spectra
for s in mlls_objects:
    if len(s.axes_manager[0].axis) < signal_shortest_len:
        signal_shortest_len = len(s.axes_manager[0].axis)
        
# Crop all spectra to start at the signal_min index and be as long as signal_shortest_len
# I had to do use the signal_min here as well as before, as otherwise it was one short - look into later.
for i in range(len(mlls_objects)):
    mlls_objects[i].crop_spectrum(signal_min, signal_shortest_len)
    
bss_spectra[0].crop_spectrum(signal_min, signal_shortest_len)

pp.pprint((bss_spectra[0], mlls_objects)) # Use prettyprint (pprint) to print the signals with their length