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3.6 List of all parameters

General parameters

groupname
The name of the group that this Felo file belongs to. A fencing club is divided in the weapons, i.e. one group for each weapon and thus one Felo file. If appropriate, you may distinguish between women and men as well, however, we didn't do this because we fence mixed anyway.

If you don't give a groupname, Felo constructs one from the filename. For example, the file foil.felo gets the groupname “Foil”.

Plot and HTML parameters

These parameters modify the appearance of the plot and the handling of the HTML output, see Putting the Felo ratings on the Web.

output folder
The folder to which the HTML files as well as the plot (if there is one) are written. Its default is the folder of the Felo file.
min distance of plot tics
The shotest distance in days between two training days in the plot that get a text label. This avoids two labels to overlap. (Default: 7)
earliest date in plot
The start day in the plot, i.e. from this day on training days are included in the plot. The format must be YYYY-MM-DD as usual. (Default: 1980-01-01)
maximal days in plot
The maximal number of day being included in the plot. This prevents the plot from becoming too tight due to a large time interval being covered. (Default: 366)
fencers per plot
Maximal number of fencers in one plot. (Default: 30)
overlap in plots
Number of fencers who are present in both of two adjacent plots. (Default: 5)

The following parameters are only interesting to Windows users. On Linux, these programs are usually found without problems. For information about installing these programs, see Installation of auxiliary programs.

path of gnuplot
The full path to gnuplot. On Windows, the file is called wgnuplot.exe. If Felo doesn't find the file, it says in the error message where it looked for it. This should give you a clue how to remedy.
path of convert
The full path to convert of ImageMagick. On Windows, the file is called convert.exe. If Felo doesn't find the file, it says in the error message where it looked for it. This should give you a clue how to remedy.

Parameters for estimating initial Felo ratings

5 point bouts for estimate
The number of 5 point bouts that a freshman must have in order to be estimated by Felo, see Estimating freshmen. This bout number is only a guiding value as the exact number depends on the actual results. Besides, 10 or 15 point bouts count more. (Default: 10)
threshold bootstrapping
The minimal accuracy of the initial Felo ratings that Felo calculates during bootstrapping, see Initial Felo ratings for the whole group. If the bootstrapping fails, you should increase this parameter, e.g. by a factor of 10. (Default: 0.001)

Special parameters for calculating Felo ratings

These parameters should only be used if you really know what you're doing.

k factor top fencers
The k factor which is used for very good fencers. (Default: 25)
felo rating top fencers
The minimal Felo rating of a top fencer. If a fencer exceeds this limit once, he or she is listed as a top fencer. This only changes the k factor. (Default: 2400)
k factor others
The k factor used for ordinary fencers. (Default: 32)
k factor freshmen
The k factor used for (already estimated) freshmen. Because their number must find its true value yet, their k factor usually is a little bit higher than for ordinary fencers. (Default: 40)
5 point bouts freshmen
The number of 5 point bouts that a freshman must have fenced in order to become an ordinary – or regular – fencer. This only changes the k factor. This bout number is only a guiding value as the exact number depends on the actual results. Besides, 10 or 15 point bouts count more. (Default: 15)
minimal felo rating
The lowest possible Felo rating. If a fencer would drop below this limit, his rating is set exactly to this limit. (Default: 1200)
weighting team bout
Single bouts within a team match – or other bouts – are weighted like 5 point bouts if they are marked with ‘*’, see Additional data for bouts. This parameter is the number of typical 5 point bouts which are supposed to be equivalent to a bout marked with ‘*’. (Default: 1.0)