This document provides functions for calling the statistical package R from within MATLAB. It includes functions to open a connection to an R server process (openR), run R commands from MATLAB (evalR), copy data from MATLAB to an R variable (putRdata), copy data from an R variable to MATLAB (getRdata), and close the connection to the R server process (closeR). It also includes an example (Rdemo.m) that demonstrates connecting MATLAB to an R session, pushing data into R, running simple R commands, and retrieving the results back into MATLAB before closing the connection.

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Functions for calling the statistical package R from within MATLAB.
Contents.m
% R Connectivity Tools
% Version 1.0 (R14) 05-May-2004
%
% openR - Connect to an R server process.
% evalR - Run an R command.
% getRdata - Copies an R variable to MATLAB.
% putRdata - Copies MATLAB data to an R variable.
% closeR - Close connection to R server process.
% Rdemo - An example of using R from withing MATLAB.
% Robert Henson, May 2004
% Copyright 2004 The MathWorks, Inc.
Rdemo.m
%% Connecting MATLAB to R
% The statistical programming language R has a COM interface. We can use
% this to execute R commands from within MATLAB.
%% Connect to an R Session
openR
%% Push data into R
a = 1:10;
putRdata('a',a)
%% Run a simple R command
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2. b = evalR('a^2')
%% Run a series of commands and grab the result
evalR('b <- a^2');
evalR('c <- b + 1');
c = getRdata('c')
%% Close the connection
closeR
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