Re: [amibroker] Re: Basic line plot referencing earlier Bar - not working, AmiBroker Email List Archive

Okay. I managed to finally solve the problem, for anyone that's interested. It's always something ultra simple. I had my xo and x1 values interchanged. This works:

Plot ( C , "Close" , colorBlack , styleThick | styleDots ); Plot ( H , "High" , colorBlue , styleLine ); Plot ( L , "Low" , colorRed , styleLine ); // Any time that the current Close is lower than the *Low* of 5 bars ago, then plot a // red dashed line between those two prices. fb = Max ( Status ( "firstVisibleBar" ), 5 ); lb = Status ( "lastVisibleBar" ); Low5 = Ref ( L , - 5 ); LineLow = Null ; for ( i = fb; i < lb; i++ ) { if ( C [i] < Low5[i] ) // { LLow = LineArray (i- 5 , Low5[i], i, C [i] ); LineLow = IIf (! IsNull (LLow), LLow, LineLow); } } Plot (LineLow, "LineLow" , colorViolet , styleDashed );

--- In amibroker@xxxxxxxxx ps.com, "ozzyapeman" <zoopfree@xxx> wrote:
>
> Hey Chris,
>
> Thanks for naming the line after me. ;-)
>
> I tried out your code, with a parameter of 5 and for some reason the
> Ozzy Lines are not plotting, even when the Close is clearly lower than
> the Low of 5 bars ago. This is what I pasted directly into a new AFL
> indicator:
>
> SetChartOptions( 0, chartShowArrows| chartShowDates) ;
> _N(Title = StrFormat("{ {INTERVAL} } {{DATE}} \n{{VALUES}} ",
> O, H, L, C, V, SelectedValue( ROC(C, 1)) ));
>
> Plot(C, "Close", colorBlack, styleThick|styleDot s);
> Plot(H, "High", colorBlue, styleLine);
> Plot(L, "Low", colorRed, styleLine);
>
> _SECTION_BEGIN( "Ozzy's line");
> Lastbarr = LastValue(Cum( 1) );//counts the number of bars.
> startr = Param("bars back", 5, 10, 100, 1);;//
> endr = 1;// last bar is the barcount -1 because linearray works off
> barindex
> // these points defining the line must be NUMBERS, not arrays.
> x0 = Lastbarr - startr;
> y0 = L [ x0] ;//sets the numerical value of the low at x0.
> x1 = Lastbarr - endr;
> y1 = C[x1];
> Line = LineArray(x0, y0,x1,y1, 0,1);
> //Plot(Line, "",colorBlue, 1);
> if(y1 < y0)
> {
> Plot(Line,"" , colorBlue,1) ;
> }
> Plot( IIf(C < Ref(L,-5), Line,Null)," ",colorRed, 1);
> //Plot(C,"", colorBlack, 64);
> _SECTION_END( );
>
>
> --- In amibroker@xxxxxxxxx ps.com, ChrisB kris45mar@ wrote:
> >
> > Hi there Ozzy
> >
> > This is something I have seems to work:
> >
> > See how you go:
> >
> > |_SECTION_BEGIN( "Ozzy's line");
> > Lastbarr = LastValue(Cum( 1) );//counts the number of bars.
> > startr = Param("bars back", 5, 10, 100, 1);;//
> > endr = 1;// last bar is the barcount -1 because linearray works off
> > barindex
> > // these points defining the line must be NUMBERS, not arrays.
> > x0 = Lastbarr - startr;
> > y0 = *L* [ x0] ;//sets the numerical value of the low at x0.
> > x1 = Lastbarr - endr;
> > y1 = *C*[x1];
> > Line = LineArray(x0, y0,x1,y1, 0,1);
> > //Plot(Line, "",colorBlue, 1);
> > *if*(y1 < y0)
> > {
> > Plot(Line,"" , *colorBlue*, 1);
> > }
> > //Plot( IIf(C < Ref(L,-5), Line,Null)," ",colorRed, 1);
> > Plot(*C*,"", *colorBlack* , 64);
> > _SECTION_END( );|
> >
> > Regards
> >
> > ChrisB
> >
> >
> >
> >
> >
> >
> > ozzyapeman wrote:
> > >
> > > Hi, hoping someone can chime in on this basic line plot question. I
> > > seem to be having a lot of basic plotting problems lately, on stuff
> > > that I am sure should work.
> > >
> > > In this case, all I want to do is draw a line between the current
> > > Close and the Low of 5 bars ago, if the current Close is lower than
> > > that Low.
> > >
> > > This is what I have, but the lines do not plot. I'm also wondering
> if
> > > I even need to use looping for this or if I can do it without loops.
> > > Any input appreciated:
> > >
> > >
> > > | SetChartOptions ( 0 , *chartShowArrows* | *chartShowDates* );
> > > _N ( *Title* = StrFormat ( "{{INTERVAL} } {{DATE}} \n{{VALUES}} "
> ,
> > > *O* , *H* , *L* , *C* , *V* , SelectedValue (
> > > ROC ( *C* , 1 )) ));
> > >
> > > Plot ( *C* , "Close" , *colorBlack* , *styleThick* | *styleDots* );
> > > Plot ( *H* , "High" , *colorBlue* , *styleLine* );
> > > Plot ( *L* , "Low" , *colorRed* , *styleLine* );
> > >
> > >
> > > // Any time that the current Close is lower than the *Low* of 5 bars
> > > ago, then plot a
> > > // red dashed line between those two prices.
> > >
> > > fb = Max ( Status ( "firstVisibleBar" ), 5 );
> > > lb = Status ( "lastVisibleBar" );
> > >
> > > Low5 = Ref ( *L* , - 5 );
> > > LineLow = *Null* ;
> > >
> > > *for* ( i = fb; i < lb; i++ )
> > > {
> > > *if* ( *C* [i] < Low5[i] )
> > > {
> > > LLow = LineArray (i, *C* [i], i- 5 , Low5[i] );
> > > LineLow = IIf (! IsNull (LLow), LLow, LineLow);
> > > }
> > > }
> > >
> > > Plot (LineLow, "LineLow" , *colorRed* , *styleDashed* );
> > > |
> > >
> > >
> >
>