Message-ID: <20080925135726.GA446@eddelbuettel.com>
Date: 2008-09-25T13:57:26Z
From: Dirk Eddelbuettel
Subject: OHLC Plot with EMA in it
In-Reply-To: <3F9F8078-1505-456E-BFA6-5CFCA5C411F2@zak.li>
On Thu, Sep 25, 2008 at 03:44:21PM +0200, Michael Zak wrote:
> I have some timeseries data which I plot in a OHLC Plot. In the same
> plot I'd like to have the EMA of this timeseries. I tried to add the EMA
> point to OHLC with lines(), but this doesn't work. Has anyone an idea how
> to handle it?
Quick guess: Your transformation from priceData to EMA(priceData)
changed the x-axis data representation. Maybe you moved from times to
observation count. Make sure it remains the same, and your good.
For a simple solution directly in R, look up my bollinger bands
examples on the R Graph Gallery page.
For a high-end solution, look at the quantmod package and the quantmod
site.
Lastly, the question really belongs on the r-sig-finance list which
you should subscribe to in order to post.
Dirk
--
Three out of two people have difficulties with fractions.