MATLAB: Using assignin or evalin command to populate Structure Elements with Numeric Data.

Question

Hello,

I am getting an error while executing the below command:

assignin('base', 'A.B', 1)|

Error:

??? Error using ==> assignin

Invalid variable name "A.B" in ASSIGNIN.

As a work around i tried to use:

assignin('base', 'temp', 1);
evalin('base','A.B = temp');
evalin('base','clear temp');

The above work around was proposed in one of the previous threads:

http://www.mathworks.com/matlabcentral/newsreader/view_thread/26671

The problem I have is that, my Structure elements are read from a Cell Array inside a for loop.

Lets say C  = {'A.B', 'A1.B1'}

So how do I pass 'C' as a parameter to the below line:

evalin('base','C = temp')

Expected output: A.B = 1, A1.B1 = 1 (In Base Workspace)

I also tried to use setfield command, but could not succeed.

Thanks, Shyama

Answer 1

You probably can use other alternatives here http://www.mathworks.com/help/matlab/matlab_prog/string-evaluation.html

For your problem you can use

C  = {'A.B', 'A1.B1'}
assignin('base', 'temp', 1);
cellfun(@(x)  evalin('base',[x  '=temp']),C)