[R-SIG-Finance] how to save the quantstrat performance chart

Brian G. Peterson brian at braverock.com
Wed Mar 28 03:34:43 CEST 2012

On Tue, 2012-03-27 at 21:20 -0400, Jim Green wrote:
> Good Evening!
> in maCross.R in the demo folder of quantstrat,
> chart.Posn(Portfolio='macross',Symbol=stock.str) is called to generate
> the performance chart. internally it calls chart_Series in quantmod.
> the chart it produced is very nice, the only thing that bothers me is
> the font of the label is too small and looks like there is no easy way
> to zoom in an out interactively.
> Could anyone advise how to save that chart to some image format on the
> hard drive so I can zoom in and out without much loss of definition? I
> tried quantmod documentation and came across saveChart command but
> still don't know how to integrate to maCross.R for example.

After it has already been created, see 


otherwise, see 


I tend to not spend too much time messing about with font sizes and
such, preferring rather to see the information and move on, but patches
are always welcome.


 - Brian

Brian G. Peterson
Ph: 773-459-4973
IM: bgpbraverock

More information about the R-SIG-Finance mailing list