Assinging String Value to Structure

Question

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I'm having trouble assigning a string value ('practice') to every level of a structure called unshuff.

These work:

unshuff(1,1).myfield = 'practice';
unshuff(1,2).myfield = 'practice';

But this does not work:

unshuff(1,:).myfield = 'practice';

I get an error message that says:

Insufficient outputs from right hand side to satisfy comma separated list expansion on left hand side.  Missing [] are the most likely cause.

How can one (efficiently) assign a string value to every level of a given field in a structure?

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Answer 1

Cedric 2015-8-31

0 个投票

Here is one way:

[unshuff(1,:).myfield] = deal( 'new practice' ) ;

Nick G 2015-8-31

Thanks.

Cedric 2015-8-31

编辑：Cedric 2015-8-31

You're welcome. Here is another way that you could profile if relevant:

 newVals = repmat( {'new practice'}, 1, size( unshuff, 2 )) ;
 [unshuff(1,:).myfield] = newVals{:} ;

To understand what we are doing in both cases, you have to understand Comma Separated Lists (CSL) in MATLAB.