Time series of 1d spectra graphically displayed

After a longer observation of objects one feels the desire to compare the 1d spectra visually with each other. This includes a plot of the spectra on top of each other and offset on top of each other. The script  timeseries.py does this task (download here).

The fit files are read in from a folder, a wavelength range is selected and then the trimmed 1d-files are saved as new fits. In one plot they are plotted on top of each other and in a second part of the plot they are plotted on top of each other, but vertically offset by a selectable value. The graphic is also saved as PDF and PNG.omi Leo_timeseries