Message-ID: <CAPPM_gTFZT90QB3=jiPzByAKntnWG=HBvzTChy+rUQeUj3NT2Q@mail.gmail.com>
Date: 2013-01-20T18:57:07Z
From: Joshua Ulrich
Subject: Minor bug in addSAR
In-Reply-To: <50EDED2E.8090301@gmail.com>
On Wed, Jan 9, 2013 at 4:20 PM, Worik Stanton <worik.stanton at gmail.com> wrote:
>> getSymbols("YHOO")
>> YH <- YHOO[,-5] # Remove volume
>> chartSeries(YH, subset='2012-11::2013-01-07')
>> addSAR()
>
> The SAR plot extends off the plot area.
>
If you consider this a bug in addSAR, then it's a bug in all the
overlay functions (i.e. all moving averages, Bollinger Bands, ZigZag,
etc.). It would be nice if the overlay functions checked and revised
the y-axis limits, but it's probably more than a trivial patch.
> Using chart_Series(..) it is the same except that the background colour of
> the plot is changed from white to black.
>
There is no add_SAR, so I'm not sure how you got (or expected)
reasonable results by combining chart_Series with addSAR.
> cheers
> Worik
> --
> Overcoming poverty is not a task of charity, it is an act of justice
>
Best,
--
Joshua Ulrich | about.me/joshuaulrich
FOSS Trading | www.fosstrading.com
R/Finance 2013: Applied Finance with R | www.RinFinance.com