Plot receptive field fits collectively

[ycanerol]

Currently, we fit ellipses to the RFs obtained with checker-like stimuli. However, we do not use this information for comparing the location of RFs. Plotting them collectively could be useful in discerning duplicate clusters as well as getting an idea of the spatial layout of the recorded area, checking tiling and so on.
Possible ways of implementing this:

• One master plot with all the RFs per checker-like stimulus. Possibly overlaid onto microscope picture with the electrodes visible.
• Plot all RFs for each cluster, highlight the one belonging to that cluster.
• Plot a histogram for distribution of receptive field sizes, highlight the bin for the current cluster (Similar to Baden et al. 2016, Fig 2c)