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The analysis procedure is heavily based on that laid down by the RYA for the Portsmouth
Yardstick system and proceeds as follows:
- After starting the program, the user opens a HAL's Race Results
archive file. The program reads the results for all handicap races (i.e., races,
other than pursuit races, for classes other than level-rating ones) into an internal
database within the program.
- The program produces a summary of results
in the internal database.
- It does an analysis using the following procedure for each race:
- Calculate the average corrected time across all the boats that
finish the race.
- Temporarily eliminate those boats that are poor performers. The
definition of a poor performer is a boat whose corrected time is a certain percentage
slower than the average (default 5%, but adjustable on the quality
settings screen). This is on the assumption that such boats had problems,
or stopped for a picnic.
- Throw out those races with less than a certain number of finishers
that are good (that is not poor) performers (default again 5, but adjustable on
the quality settings screen).
- Recalculate the average corrected time using the boats that are
good performers. This is known as the Standard Corrected Time (SCT).
- Bring back the boats that were eliminated as poor performers.
Calculate the time correction coefficient (TCC) actually achieved by each boat,
using the SCT as the benchmark.
- The program gathers performance statistics
for each boat for each type of handicap (eg Portsmouth, IRC, Small Cat):
- The average TCC achieved.
- The
number of results used to calculate that TCC.
- The
lowest and highest TCC.
- The
program does a similar analysis for each type of boat,
by aggregating the statistics for all the boats of a certain type (eg. Laser, Sigma
33).
- The
program allows the user to download the analysis by boat or by type into an Excel
spreadsheet.
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