Create and save structure of variables as a mat-file. 
    <a href="use.html">use</a>         - Copies structure fields into named variables in workspace.         
    <a href="catstruct.html">catstruct</a>   - Concatenates the array elements of a cell array of structures.
    <a href="structindex.html">structindex</a> - Applies an index to all array-valued fields in a structure.
 
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    <a href="cum2mom.html">cum2mom</a>   - Convert cumulants to moments.    
    <a href="mom2cum.html">mom2cum</a