Lecture 4

- 4.1 Plot a single spectrum in dB out of a 2-dimensional FIT-file at a dedicated time-event -> Folder SingleSpectrum, script plotSingleSpec.py
      Play with vmin, vmax in line 26
      Play with selection of different time-slots in lines 38-39
      Remember pseudo-calibration [dB] in line 43
      See, how time in the title is printed!

- 4.2 Plot a single light curve in dB out of a 2-dimensional FIT-file at a dedicated frequency -> Folder Lightcurve, script plotLightcurve.py
      Use Javaviewer to identify frequency of interest. By printing freqs[a number 0...199] find corresponding channel-number
      Do this for frequency of interest and put the channel-number in line 44
      In line 49 the lowest value found of the light-curve will be subtracted in line 50 including pseudo-calibration in dB
      Play also with smoothing value (here 10) in line 48

- 4.3 Swap frequency-axis and save in different graphic formats -> Folder AxisFlip, script FITplotAxisFlip.py
      Some scientists want to have lowest frequency at the top because axis could then replaced by solar radius. 
      Others want to have lowest frequency at the bottom as usual in xy-plots (individual preferences).
      Play with clip-values in line 31 as well as with color-map in lines 38 and 52
      Which version do you prefer?
