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Re: [GT] BuySellArrow misnomer

Weigert, Thomas wrote:

The interpretation of the BuySellArrows that can be added in
./graphic.pl as display elements is not quite correct.

The doc states that this "adds buy and sell arrows in the main chart,
based on systems signals". However, the signals generated by a system
are really just buy signals for long and short positions. The selling in
a system is performed by the close strategy. Only when the close
strategy is OppositeTrade is the second signal in fact a sell signal for
a buy entered due to the first signal in a system.


absolutely correct!

maybe a corrective action is called for (one or more of)
a) more clearly explain it in the graphic.pl pod
b) change directive to LongShortArrows (but still accept BuySellArrows
  but depreciate it by removing the pod references)
  naturally that implies a name change to GT/Graphics/Object/BuySellArrows
  too.
c) correct BuySellArrows by requiring a system description that includes
  a close strategy (will that work now if the argument is such?)
d) other to be determined

humm -- does VotingLine work similarly?

ras



So the user needs to be careful not to be confused about this
difference. The sell signals will not be correct for a system with a
different close strategy.

Part of this confusion is due to the terminology in GT, where two
different things are called "system". The system object is really just a
combination of two signals (a long and a short signal). But then one
often refers to what is more properly a system manager as a system (a
combination of the former system with close strategy, trade filters,
brokers, money management, etc.).

Th.