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Tomasz,
Do I understand you to mean that StyleOwnScale will not allow
plotting a histogram (without the styleLog argument) over a
logarithmic price chart?
Just want to be sure before I abandon ship.
Tim Gadd
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Tim,
>
> This happens because you want to plot NEGATIVE values
> using log scale. (rate of change can be negative)
>
> The logarithm of negative argument does not exist in mathematics.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "Tim Gadd" <timgadd@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Monday, March 10, 2003 6:09 PM
> Subject: [amibroker] Re: Indicator Code not working after upgrade
>
>
> > Tomasz,
> >
> > I tried that (see last paragraph of original message), but then
the
> > indicator doesn't plot as a histogram. It plots all lines from
the
> > bottom of the pane. The only way I can get it to plot as a
histogram
> > is if I remove the Logarithmic check box and I don't want to do
that.
> > I want price plotted using Logarithmic scale.
> >
> > Thanks for the lightning fast response.
> >
> > Tim Gadd
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko"
<amibroker@xxxx>
> > wrote:
> > > Hello,
> > >
> > > There is no styleLog anymore.
> > > Use "logarithmic" check box in the Indicator Builder instead.
> > >
> > >
> > > Plot (RelRocOfPrice, "RelRoc of Price", barcolor,
styleOwnScale |
> > styleHistogram); // don't use styleLog
> > >
> > > Best regards,
> > > Tomasz Janeczko
> > > amibroker.com
> > > ----- Original Message -----
> > > From: "Tim Gadd" <timgadd@xxxx>
> > > To: <amibroker@xxxxxxxxxxxxxxx>
> > > Sent: Monday, March 10, 2003 5:56 PM
> > > Subject: [amibroker] Indicator Code not working after upgrade
> > >
> > >
> > > > Prior to upgrading to version 4.3, the following code worked.
Now
> > I'm
> > > > getting the error message ...
> > > >
> > > > Unknown identifier at line 29, column 10:
> > > > Plot (RelRocOfPrice, "RelRoc of Price", barcolor, styleLog |
> > > > -----------------------------------------------------------^
> > > >
> > > > BTW, this indicator code is placed in the builtin price
indicator
> > > > formula.
> > > >
> > > > //Start of indicator code
> > > >
> > > > Period = 107;
> > > >
> > > > UpDay = C > Ref(C,-1);//define an up day
> > > > UpDays = Sum(UpDay, Period);//# of up days in the period
> > > > AvgUpRoc = MA(ROC(C,1) * UpDay,UpDays);//Average of the 1-day
> > ROCs
> > > > for up days over the lookback period
> > > > RelUpRoc = ROC(C,1) / Ref(AvgUpRoc,-1);//Today's 1-Day ROC
> > compared
> > > > to yesterday's AvgUpRoc
> > > > DnDay = C < Ref(C,-1);//define a down day
> > > > DnDays = Sum(DnDay, Period);//# of down days in the period
> > > > AvgDnRoc = MA(ROC(C,1) * DnDay,DnDays);//Average of the 1-day
> > ROCs
> > > > for down days over the lookback period
> > > > RelDnRoc = -(ROC(C,1) / Ref(AvgDnRoc,-1));//Today's 1-Day ROC
> > > > compared to yesterday's AvgDnRoc
> > > >
> > > > RelRocOfPrice = IIf(UpDay,RelUpRoc-1,RelDnRoc+1);
> > > >
> > > > BarColor = IIf(UpDay, colorDarkGreen, IIf(DnDay,
> > > > colorRed,colorBlack) );
> > > >
> > > > Plot (RelRocOfPrice, "RelRoc of Price", barcolor, styleLog |
> > > > styleOwnScale | styleHistogram); // THIS IS THE PROBLEM LINE
> > > >
> > > > Plot(MA(RelRocOfPrice,3),"",colorLightBlue,styleHistogram |
> > > > styleThick | styleOwnScale);
> > > >
> > > > //--Indicator-End--
> > > >
> > > > If I remove the styleLog parameter from the problem line, the
> > error
> > > > message goes away, but the indicator no longer plots as a
> > histogram.
> > > > It plots all lines starting from the bottom of the pane. I
have
> > > > Logarithmic checked at the bottom of the indicator builder,
as I
> > want
> > > > to price plotted using a logarithmic scale.
> > > >
> > > > Can someone spot the problem? Help appreciated.
> > > >
> > > > Tim Gadd
> > > >
> > > >
> > > >
> > > >
> > > > Send BUG REPORTS to bugs@xxxx
> > > > Send SUGGESTIONS to suggest@xxxx
> > > > -----------------------------------------
> > > > Post AmiQuote-related messages ONLY to:
amiquote@xxxxxxxxxxxxxxx
> > > > (Web page: http://groups.yahoo.com/group/amiquote/messages/)
> > > > --------------------------------------------
> > > > Check group FAQ at:
> > http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> > > >
> > > > Your use of Yahoo! Groups is subject to
> > http://docs.yahoo.com/info/terms/
> > > >
> > > >
> > > >
> >
> >
> > Send BUG REPORTS to bugs@xxxx
> > Send SUGGESTIONS to suggest@xxxx
> > -----------------------------------------
> > Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
> > (Web page: http://groups.yahoo.com/group/amiquote/messages/)
> > --------------------------------------------
> > Check group FAQ at:
http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> >
> > Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
> >
> >
> >
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
-----------------------------------------
Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
(Web page: http://groups.yahoo.com/group/amiquote/messages/)
--------------------------------------------
Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
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