Hi,
Try this,
m = melt(dat, id="Date")
head(m)
qplot(Date, value, data=m, colour=variable, geom="line")
ggplot(m) + facet_grid(variable~., scales="free_y") +
geom_path(aes(Date, value))
HTH,
baptiste
On 10 January 2011 14:12, Santosh Srinivas <santosh.srini...@gmail.com> wrote:
> Hello R-Group,
>
> I am trying plotting simple time-series with ggplot2 because the output
> looks better and I've heard its richer in features.
>
> I have the following dataset.
>> dput(dat)
> structure(list(Date = structure(c(14970, 14971, 14972, 14973,
> 14974, 14977, 14978, 14979, 14980, 14981), class = "Date"), Close =
> c(5998.1,
> 5996, 6060.35, 6101.85, 6134.5, 6157.6, 6146.35, 6079.8, 6048.25,
> 5904.6), vol = c(0.154535414667409, 0.151830297402932, 0.140309395040681,
> 0.136253183394409, 0.137108091041075, 0.137109537791588, 0.137664093371524,
> 0.141313700592413, 0.123866294210121, 0.139356235990631)), .Names =
> c("Date",
> "Close", "vol"), row.names = c("4905", "4906", "4907", "4908",
> "4909", "4910", "4911", "4912", "4913", "4914"), class = "data.frame")
>
> I can get one plot using:
> qplot(Date, Close, data=dat,geom="line")
>
> How can I plot both Close and vol on the same chart?
>
> Been breaking my head on this ... thanks for your help in advance.
>
> Regards,
> S
>
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>
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