Hi Wind,
Have a look at the this:

if(!is.null(xlseries)) plot(addTA(xlseries, on=1, type='p', pch=25,
col="green", bg="green", legend=""))
if(!is.null(xsseries)) plot(addTA(xsseries, on=1, type='p', pch=24,
col="red", bg="red", legend=""))
if(!is.null(elseries)) plot(addTA(elseries, on=1, type='p', pch=24,
col="green", legend=""))
if(!is.null(esseries)) plot(addTA(esseries, on=1, type='p', pch=25,
col="red", legend=""))

where elseries is a xts series with enter long signals, xlseries is a xts
series with the exit long signals etc.

HTH,

-Mark-

2009/10/23 Wind <windspeedo99@gmail.com>

> Stock charts in quantmod are as good as other commercial softwares'.
> Yet I wonder how to add little arrows to the barChart.   Something as
> http://www.trendprognosis.com/wp-content/uploads/2009/05/VLE0612.gif
> Sometimes little arrows are better than shaded area on the charts.
>  Several kinds of arrows for buy, sell, stop, warning would be enough.
> Thanks.
>
> Wind
>
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