[R-SIG-Finance] quantmod custom layouts

[Jeff Ryan]

Hi Brian,

There is a new function in quantmod to save the chart (though not in
the CRAN version yet).  It doesn't do much more than:

dev.copy2pdf(file="AAPL.pdf")

Which will do what you want.  The interactive nature of the
chartSeries logic makes using it on other devices not quite as smooth
as one would like/expect.  But it can be done. (see ?dev.copy)

HTH,
Jeff

On Thu, Mar 12, 2009 at 3:40 PM, B Kim <briankim19 at yahoo.com> wrote:
> Fantastic, thats exactly what I was looking for!
>
> Also, how can I change the colors of the technical indicator lines?  I use
> the "white" theme to save on ink when printing, but the dashed line in the
> addSMI call is very hard to see.
>
>     chartSeries(AAPL, layout=NULL, up.col='white', dn.col = 'blue',
> theme="white", TA="addBBands();addSMI();")
>     addLines(h=-25, on = 2, col = "red")
>     addLines(h=25,  on = 2, col = "red")
>
> Last question, whats the best way to add overbought and oversold lines?
> When I use the above code and write to a pdf, I get pages in the pdf file.
> The first page contains the chart and indicators, the 2nd page contains the
> same but has a line added at -25, and the 3rd page contains lines at -25 and
> 25.
>
> thanks again,
> Brian
>
>
> ________________________________
> From: Jeff Ryan <jeff.a.ryan at gmail.com>
> To: B Kim <brian.a.kim at gmail.com>
> Cc: r-sig-finance at stat.math.ethz.ch
> Sent: Thursday, March 12, 2009 4:18:46 PM
> Subject: Re: [R-SIG-Finance] quantmod custom layouts
>
> Hi Brian,
>
> I need to make this easier, and document it better, but this will get
> you started. There are slides from my presentations at Rmetrics 2008
> and Columbia on the quantmod website.
>
> (From a previous post on the same topic)
>
> Before calling any chartSeries function (including barChart), use the
> R 'layout' function. see ?layout
> Each window is technically a plot region, so count the TA _windows_ when
> you do this.
>
> getSymbols("SPY;DIA;QQQQ;IWM")
> layout(matrix(1:8, nrow=4), height=c(4,2.5,4,2.5))
>
> Then set layout=NULL in each call.
> chartSeries(IWM, layout=NULL)
> chartSeries(SPY, layout=NULL)
> chartSeries(DIA, layout=NULL)
> chartSeries(QQQQ, layout=NULL)
>
> You need to have a constant 'theme', or funny things will happen.
>
>
> Other arrangements are possible, though require you to really get your
> head around 'layout'.  I will one day be adding in a chartLayout tool
> that will make this easier, but for now it is at least doable.
>
> layout(matrix(c(1,1,1,2,3:6), nrow=4), height=c(4,2.5,4,2.5))
> chartSeries(QQQQ, layout=NULL)
> chartSeries(QQQQ, layout=NULL)
> chartSeries(QQQQ, layout=NULL)
>
> You won't be able to use this interactively once the chart is drawn
> --- i.e. calling addTA to dynamically add TA additions.  The layout
> needs to be calculated before any of the drawing takes place.  This is
> what happens internally when you call addTA/chartSeries,, which is why
> setting layout=NULL places the burden on you the user.
>
> HTH,
> Jeff
>
> R/Finance 2009: Applied Finance with R
> April 24, 25 Chicago, IL USA
> http://www.RinFinance.com
>
> [original here:]
> http://www.nabble.com/layout--options-of--barChart-in-quantmod-tt20481570.html#a20481570
>
> On Thu, Mar 12, 2009 at 3:06 PM, B Kim <briankim19 at yahoo.com> wrote:
>> Hi,
>>
>> I just started using quantmod and R.  Can someone tell me how to use the
>> custom layouts?  For example, I just want to have 2 stock charts with
>> indicators on the same page.
>>
>> thanks,
>> Brian
>>
>>
>>
>>        [[alternative HTML version deleted]]
>>
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>
>
>
> --
> Jeffrey Ryan
> jeffrey.ryan at insightalgo.com
>
> ia: insight algorithmics
> www.insightalgo.com
>
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>



-- 
Jeffrey Ryan
jeffrey.ryan at insightalgo.com

ia: insight algorithmics
www.insightalgo.com