B&G Deckman - Manual (Page 179)

Chapter 12: Deckman files
12.20
Calibration example 2
For example, you could enter:
5 0 20 5 25
table –1 +
0 10
180 -10
360 10
table 0 +
-20 10
0 0
20 10
The first line and first table of this are identical to above, but the
outcome of the first table is then further modified by the second table. In
the example, the –1 after the word table indicated that the correction
was applied to the variate itself. Entering any other number after the
word table means that we are calibrating with respect to another
variable in Deckman’s database, with the variables referred to by the
Deckman identification number (see j_varsXX.d above). In the
example above, the 0 refers to the Deckman identification number for
Heel. The second table therefore applies corrections depending on the
angle of heel: the first column is the angle of heel and the second is the
correction to be applied to the compass. The result of the second table in
the above example would be:
Input from first table Angle of heel Result of second table
50 30 65
50 10 55
50 0 50
50 -20 60
50 -30 65
Here, the offset to the compass heading is altered by the angle of heel.
Of course, the corrections in the previous table will continue to be
applied before the corrections with respect to heel.