Accutrack

Build in AmiBroker an Accutrack indicatorAccuTrack Indicator (A Chart)
AccuTrack Parameter 1 is a smoothing
factor. Parameter 2 governs the length of
the moving averages used internally in
the computation of AccuTrack. To com-
pute each day's AccuTrack bar:

Compute a daily change for the fund
and the index by the formula:
Change= (TodayNAV - YesterdayNAV)/YesterdayNAV
Exponentially smooth FundChange
and IndexChange by Parameter 2
starting from the 1st date in the data-
base.
Subtract the smoothed FundChange
and IndexChange computed above.
Diff= FundChange - IndexChange
Exponentially smooth Diff by Parameter 1.
Check the data for the maximum and
minimum values. Then scale the data
to fit in the range 1 to 100.
Plot each day's value as a vertical bar
with 50 falling at the centerline.
The default parameter values are,
Param1 = 12 x 4.5/SD
Param2 = 4 X Param1
Standard Deviation (SD=)
FastTrack's Standard Deviation is done
for consecutive 21 market day periods
when the number of market days dis-
played>105 or for consecutive 7 market-
day periods when the number of market
days is <=105. The computation is always
performed for the number of days
displayed OR for the number of days that
the fund (red line) existed, whichever is
shorter.