[R-gui] R-SIG-GUI Digest, Vol 107, Issue 1

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Today's Topics:

   1. [VC++ calling R] How to create a real-time interactive
      ticking time-series chart using dygraph via RInside? (Mike Deanza)


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Message: 1
Date: Mon, 11 Apr 2016 15:03:27 +0000
From: Mike Deanza <mikedeanza at outlook.com>
To: "r-sig-gui at r-project.org" <r-sig-gui at r-project.org>,
        "r-sig-finance at r-project.org" <r-sig-finance at r-project.org>,
        "r-devel at r-project.org" <r-devel at r-project.org>,
        "r-package-devel at r-project.org" <r-package-devel at r-project.org>,
        "r-help at r-project.org" <r-help at r-project.org>
Subject: [R-gui] [VC++ calling R] How to create a real-time
        interactive ticking time-series chart using dygraph via RInside?
Message-ID:
        <
CY1PR0201MB1818D3AEBC4F2B87B0A9C328C3940 at CY1PR0201MB1818.namprd02.prod.outlook.com


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Hi all,


I am trying to figure out how to do this in R and I need your help.


My journey started from something like the following:



http://stackoverflow.com/questions/11365857/real-time-auto-updating-incremental-plot-in-r/1#1


n=1000
df=data.frame(time=1:n,y=runif(n))
window=100
for(i in 1:(n?\window)) {
flush.console()
plot(df$time,df$y,type='l',xlim=c(i,i+window))
Sys.sleep(.09)
}


Then I wanted to make it nicer looking so I went to dygraph.


And then, I would like to be able to live send tick data from within
Visual C++ so I started to investigate RInside.


Following the example code here:


http://dirk.eddelbuettel.com/papers/useR2009RcppRInside.pdf


I can open an RInside object in VC++, and then send some data to it, and
then execute some command in it, and then get data back.


It is really great.


However, is there a way to have the real-time updating ticking plots to be
drawn on dygraph inside RInside?


It turns out the dygraph package tends to draw onto a browser. That makes
the real-time updating pretty slow.


Is there a way to set the dygraph to plot to a GUI window in VC++? For
example, a QT or MFC GUI window?


My working environment is Win7 64bit ,with VS 2013 and VS2015, QT 5.3
32bit.


Could anybody please shed some lights on me?


Thanks a lot!







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