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# Long description

This figure is a screenshot of the top right zone in the interactive interface. The probability histogram of the unfiltered signal is shown as two similar overlapping histograms: one centred around 0 and spanning approximately minus 0.75 to plus 0.75, and one centred around 1 and spanning approximately 0.25 to 1.75. Below this is the ‘Decision level (V)’ slider, which is set nearer to 1 than to 0, as indicated by the shading behind the histograms. The detection statistics are as follows.

- Data 1, Correct detections: 36.21 per cent.

- Data 0, Correct detections: 50 per cent.

- Data 1, False detections: 0 per cent.

- Data 0, False detections: 13.79 per cent.