High/Low of the bar previous to the signal bar

[rook]

Really appreciate if someone can show how to refer high/low of the bar previous to signal bar - with no applystop function.
This can help in calculating position size automatically through afl and could display on screen.
Any help is highly appreciated. Thanks.

 

[Romeo1998]

Dear friend,
I think this is what u r looking for

//plotting price
Plot( C,"",colorDefault,styleCandle);

//condition for buying
Buy = Cross( MACD(), Signal() );

//plot a green arrow below the candle on chart when condition is true
PlotShapes(IIf(Buy,shapeUpArrow,shapeNone),colorGreen,0,L,-12);

//referring to the previous bar before the condition
bar_before_buy=Ref(Buy,1);

//plot a yellow arrow below that candle
PlotShapes(IIf(bar_before_buy,shapeUpArrow,shapeNone),colorYellow,0,L,-12);

//referring to the previous bar's high before the condition
hh=ValueWhen(bar_before_buy,H);

//referring to the previous bar's low before the condition
ll=ValueWhen(bar_before_buy,L);

//plotting those highs and lows
Plot(hh,"",colorBlue,styleLine|styleDots);
Plot(ll,"",colorViolet,styleLine|styleDots);

 

[rook]

---edited

 

[rook]

Many thanks!!
However, can you explain how Ref(Buy,1) refers to the previous bar? Would it not look for the bar after the Buy Signal?

Dear friend,
I think this is what u r looking for

//plotting price
Plot( C,"",colorDefault,styleCandle);

//condition for buying
Buy = Cross( MACD(), Signal() );

//plot a green arrow below the candle on chart when condition is true
PlotShapes(IIf(Buy,shapeUpArrow,shapeNone),colorGreen,0,L,-12);

//referring to the previous bar before the condition
bar_before_buy=Ref(Buy,1);

//plot a yellow arrow below that candle
PlotShapes(IIf(bar_before_buy,shapeUpArrow,shapeNone),colorYellow,0,L,-12);

//referring to the previous bar's high before the condition
hh=ValueWhen(bar_before_buy,H);

//referring to the previous bar's low before the condition
ll=ValueWhen(bar_before_buy,L);

//plotting those highs and lows
Plot(hh,"",colorBlue,styleLine|styleDots);
Plot(ll,"",colorViolet,styleLine|styleDots);

 

[Romeo1998]

I am searching in the help file

 

[rook]

Trying to understand


But Many thanks buddy!

 

[Romeo1998]

yes u r right friend,
but when i used ref(buy,-1), the arrow was shown after the condition bar
so then i used ref(buy,1) n then it was shown before the condition bar
i have no idea how this worked

 

[rook]

I will get back after some experimentation to understand how it works.

 

[c.trader]

yes u r right friend,
but when i used ref(buy,-1), the arrow was shown after the condition bar
so then i used ref(buy,1) n then it was shown before the condition bar
i have no idea how this worked

sir can u code afl strategy

 

[Romeo1998]

Dear friend c.trader,
i can give it a try