Attempt to reference field of non-structure array

Question

Can anyone tell me why the following code

function s3()

   function ret = fun(x)
       disp(x);
       ret = 0;
   end

  fun(1);

end

produces "Attempt to reference field of non-structure array.". I have this code in a file called s3.m. If I run this in the editor using the play button it runs fine. If I enter s3.m on the command line it produces the above error. Thanks for any help in advance!

the n-th: Possibly 'clear all' might help. Is there a variable called 's3' in your workspace? — zellus
– zellus, Commented Jan 4, 2011 at 8:50
You must type not s3.m but s3() in the command line to run the function s3 — Mikhail Poda
– Mikhail Poda, Commented Jan 4, 2011 at 11:08
You asked this same question on the matlab newsgroup. The answer there is you are probably trying to run your function by calling s3.m in the command window. This is not how you execute a function in matlab. If you are going to ask a question, at least read the responses! — user85109
– user85109, Commented Jan 4, 2011 at 11:25
Calling s3.m on the command line yields the following error message: '??? Undefined variable "s3" or class "s3.m".' — zellus
– zellus, Commented Jan 4, 2011 at 16:53

SCFrench · Accepted Answer · 2011-01-05 02:05:58Z

5

Call it this way:

s3()

rather than

s3.m

because it's a function you have created.

edited Jan 5, 2011 at 2:05

SCFrench

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answered Jan 4, 2011 at 11:57

Ravinder Singh

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