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Interactive continuum determination can be done with the command
NORMALIZE/SPECTRUM as mentioned above.
There are commands to measure the position of spectral features.
CENTER/MOMENT determines positions from moments whereas
CENTER/GAUSS fits a Gaussian profile; for very sparsely sampled
point spread functions, CENTER/UGAUSS is preferred.
Optionally, all positions can be stored in a working table file.
Measurements of line strengths and equivalent widths can be
obtained with the command INTEGRATE/LINE.
Unwanted spectral features (e.g., spikes due to particle events)
can be interactively removed with MODIFY/GCURSOR.
The commands GET/GCURSOR and CONVERT/TABLE
provide means to generate artificial images from cursor positions.
The fitting package permits the determination of
line parameters and additional modelling of the data.