[R] getting multiple plots on a single plot

[Vihan Pandey]

On 22 March 2012 20:23, R. Michael Weylandt <michael.weylandt at gmail.com> wrote:
> Don't use plot three times -- it opens a new page when pdf() is your
> current device. Do the first with plot -- then use lines() online from
> there to the end.

Thanks a million that did the job! :-)

Cheers!

- vihan

>
> Michael
>
> On Thu, Mar 22, 2012 at 3:18 PM, Vihan Pandey <vihanpandey at gmail.com> wrote:
>> Hi all,
>>
>> I have the following R script :
>>
>>
>> #!/usr/bin/Rscript
>>
>> out_file = "hybrid.pdf"
>> pdf(out_file, height=8.5, width=11)
>>
>> myvalues_1M <- read.csv("hybrid_sims_1M.csv",head=TRUE,sep=",")
>> plot(myvalues_1M$num_sims_per_thread,myvalues_1M$time_per_sim,xlab="Number
>> of Simulations per Thread",ylab="Time per 1 million Simulations(in
>> milliseconds)",col="red",main="For 1 million simulations")
>> lines(myvalues_1M$num_sims_per_thread,myvalues_1M$time_per_sim,col="red")
>>
>> myvalues_5M <- read.csv("hybrid_sims_5M.csv",head=TRUE,sep=",")
>> plot(myvalues_5M$num_sims_per_thread,myvalues_5M$time_per_sim,xlab="Number
>> of Simulations per Thread",ylab="Time per 1 million Simulations(in
>> milliseconds)",col="blue",main="For 5 million simulations")
>> lines(myvalues_5M$num_sims_per_thread,myvalues_5M$time_per_sim,col="blue")
>>
>> myvalues_10M <- read.csv("hybrid_sims_10M.csv",head=TRUE,sep=",")
>> plot(myvalues_10M$num_sims_per_thread,myvalues_10M$time_per_sim,xlab="Number
>> of Simulations per Thread",ylab="Time per 1 million Simulations(in
>> milliseconds)",col="green",main="For 10 million simulations")
>> lines(myvalues_10M$num_sims_per_thread,myvalues_10M$time_per_sim,col="green")
>>
>> dev.off()
>>
>> print(paste("Plot was saved in:", getwd()))
>>
>>
>>
>> This generates a 3 page pdf file with a plot on each page. They look like this :
>>
>> http://s17.postimage.org/ud9ej1cnj/alpha1.png
>> http://s13.postimage.org/7q3snqsrr/alpha2.png
>> http://s14.postimage.org/sf374f12p/alpha3.png
>>
>> I want to plot all the 3 in one graph, in one page with the respective
>> colours - red, blue, and green. Any ideas on how?
>>
>> Thanks,
>>
>> - vihan
>>
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