MATLAB: What’s the matter!

Question

My MATLAB when start my run said this one:

??? Warning: Struct field assignment overwrites a value with class "double".
 See MATLAB 7.0.4 Release Notes, Assigning Nonstructure Variables As Structures Displays Warning for details.

Do you Know what's the problem? The version of MATLAB

Answer 1

My guess is you're reusing a variable name, for example

 a = 1;
 a.b = 2;

The warning is letting you know that by assigning a field b to the variable a, you are overwriting the double array a with a structure array named a. If you do initialize the structure first, it will avoid the error.

 a = 1;
 a = struct;
 a.b = 2;