How can I pass a variable to a function with the variable name and data visible to the function without passing both a string and a data variable separately in MATLAB 7.0 (R14)?
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I want to pass a variable to a MATLAB function with the variable name and data visible to the function without passing both a string and a data variable separately in MATLAB.
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MathWorks Support Team
2009-6-27
You can accomplish this by using the EVALIN function. As an example, if you want to write a function to plot a workspace variable and set the plot title to the name of the variable, you could use the following function:
function plotname(name)
% where name is passed as a string
data = evalin('base',name);
plot(data)
title(name)
an example of using this code from the MATLAB command prompt is below:
myData = 1:10;
plotname myData %can also use plotname('myData')
This will plot the data contained in "myData" and set the title of the plot to be "myData".
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2009-6-27
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