Unable to Scale/Display properly in plotting a xts/timeseries graph in a single plot
plot(vols,plot.type="s",format="auto") lines(vols[,2],col="red")
Did you get any warning messages when you did that? I get
> library(xts)
> z <- xts(cbind(One=sin(1:20), Two=cos(1:20)+1.5), order.by
=as.Date("2015-04-06")+(0:19))
> plot(z)
Warning message:
In plot.xts(z) : only the univariate series will be plotted
and the y limits on the plot are at about c(-1,1). Thus the
added points in z[,2] will not all be within the limits.
You need to supply ylim=range(z) in the plot call if you want
the limits to include the range of the second column of z.
> plot(z[,1], ylim=range(z))
> lines(z[,2], col="red")
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Tue, Apr 7, 2015 at 9:47 AM, Joshua Ulrich <josh.m.ulrich at gmail.com>
wrote:
On Tue, Apr 7, 2015 at 11:30 AM, Raghuraman Ramachandran <optionsraghu at gmail.com> wrote:
Dear guRus I have xts data as: str(volsA) An ?xts? object on 2014-05-13/2015-04-07 containing: Data: num [1:221, 1:2] 18.8 18.5 18.4 22.2 22 ... - attr(*, "dimnames")=List of 2 ..$ : NULL ..$ : chr [1:2] "vol1" "vol2" Indexed by objects of class: [Date] TZ: UTC xts Attributes: List of 1 $ na.action:Class 'omit' atomic [1:20] 1 2 3 4 5 6 7 8 9 10 ... .. ..- attr(*, "index")= num [1:20] 1.4e+09 1.4e+09 1.4e+09 1.4e+09 1.4e+09 ...
I am trying t0 plot them in a single frame but the scaling does not happen properly. plot(vols,plot.type="s",format="auto") lines(vols[,2],col="red") The lower graph in red gets displayed as a truncated graph and does not fully exhibit the relationship. Can someone kindly help in scaling/display please?
What's the output of sessionInfo() from your R session?
Thanks Raghu
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