Comparisons

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Comparisons

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When the [comparisons] menu item is selected, the pair comparisons and statistics screen is shown:

Comparisons

Each pair in the movement is listed on the top and the left. The comparison of competition (as determined by the Manning and Moore methods) are shown for each pair of pairs in the movement. The maximum and minimum values are shown on the right as well as the imbalance (standard deviation) and kurtosis of the values. The standard deviation as recommended by Manning is equivalent to the imbalance defined by Moore.

 

The last row shows the Bussemaker score for each pair and the second last row the recommended pair seeding, 1 being the top seed.

 

The normalized standard deviation is derived by dividing the standard deviation by the mean of all the scores shown in the table on the left (ignoring those where the row and column are the same).

 

The calibre is the measure of quality of the movement expressed as a percentage.

 

See 'Duplicate bridge schedules, history and mathematics' for more details on this subject.