The directivity data measured and simulated are in the folder "directivity_data"

Each file contains a structure named "data" having the following fields:
  - freqStep				spacing between the frequencies
  - nbFreqs					number of frequencies
  - polarAngles 			angular elevation of the points (0 deg is on the top)
  - azimuthalAngles			angular azimuth of the points 
  - amplitude				a matrix containing the measured or simulated amplitude 
							its dimensions are: 
							[nb polar angles X nb azmuthal angles X nb freqs]
  - bckgdNoise				a matrix containing the background noise for each elevation
							(it is the same for each azimuthal position)
							its dimensions are:
							[nb polar angles X nb freqs]

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Matlab scripts are provided to plot and average the data:

plot_directivity_data.m 

can be used to select interactively data and plot directivity maps, directivity index 
and directivity balloons. Many parameters can be varied by commenting/un-commenting 
specific lines and setting boolean variables. This is described in further details in 
the comments of the script.

generate_averaged_data.m

can simply be run to generate averaged data which are placed in a folder: 
"averaged_directivity_data" which is created automatically.
These data can be visualized in the same way as the other data with "plot_directivity_data.m".

correct_data.m, preprocess_data.m and viridis.m are Matlab functions which are called 
by the two scripts described above.