[R] Multiple series plot with different 'type' argument

Gabor Grothendieck ggrothendieck at gmail.com
Sun Jul 24 19:18:12 CEST 2005

plot.zoo can do that.

xts <- ts(rnorm(20)); xz <- as.zoo(xts)
yts <- ts(rnorm(20)); yz <- as.zoo(yts)
plot(cbind(xz,yz), type = c("p","l"), plot.type = "single")

On 7/24/05, Ruben Roa <RRoa at fisheries.gov.fk> wrote:
> Hi:
> I need to plot two time series in the same plot and
> they cover the same time range and have the same
> frequency. With
> RSiteSearch("multiple series plot")
> i found this post by Gabor Grothendieck:
> http://finzi.psych.upenn.edu/R/Rhelp02a/archive/42281.html
> Exactly what i need except for one detail. I want one series
> to be made of points and the other by a line. When I simply
> try:
> xts <- ts(x$b,start=x$a[1])
> yts <- ts(y$b,start=y$a[1])
> ts.plot(xts,yts,type=c("p","l"))
> or if i use the 'type' argument inside gpars=list()
> i get an error of "invalid plot type".
> Then if i try
> ts.plot(xts,yts,type1="p",type2="l")
> i get warnings about NAs introduced by coercion and the
> plot still shows two lines.
> Is there any other way i can get these two time series
> in the same plot one with points and the other with lines?
> Any help much appreciated.
> Ruben
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