[R-SIG-Finance] Using abline with chartSeries

[Worik Stanton]

On 09/04/12 17:58, Joshua Ulrich wrote:
> Click the "Support Lists" tab on the right section of the page.  The
> first three results answer your original question.
That is, although helpful, a little obscure!

Helpfully, to answer my own question:

> > getSymbols("IBM")
> [1] "IBM"
> > IBM.m <- to.monthly(IBM)
> > chartSeries(IBM.m, theme="white")
> > abline(h=160)
addLines(h=160, on=1)

does the trick.

But how do I get a dotted line?

 > addLines(h=100, lty=2)
Error in addLines(h = 100, lty = 2) : unused argument(s) (lty = 2)

The "col" argument works to set a colour.

Is there any documentation available?  Banging around google and mailing 
list archives is a very time consuming and frustrating process.

?addLines is not helpful.

cheers
Worik

-- 
Foo!