Associative array/Iteration: Difference between revisions

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 =={{header|MATLAB}} / {{header|Octave}}==
-Associative arrays are not native to Matlab and Octave, but one can (mis-)use "struct" as an associative array.
+Associative arrays can be defined as struts in Matlab and Octave.
-<lang Matlab>   s.a = 1;
+<lang Matlab>   keys = fieldnames(hash);
-   s.b = 2;
-   s.C = [3,4,5];
-   keys = fieldnames(s);
    for k=1:length(keys),
         key = keys{k};
-	value = getfield(s,key);      % get value of key
+	value = getfield(hash,key);        % get value of key
+	hash = setfield(hash,key,-value);  % set value of key
-	disp(value);
+   end; </lang>
-	s = setfield(s,key,-value);   % set value of key
-   end;
-   disp(s)   </lang>
+or
-Output:
-<pre>   1
-4   5
->>    disp(s)
+<lang Matlab>   keys = fieldnames(hash);
-  scalar structure containing the fields:
+   for k=1:length(keys),
-    a = -1
+        key = keys{k};
+        value = hash.(key);     % get value of key
-    b = -2
+        hash.(key) = -value;    % set value of key
-    C =
+   end; </lang>
-      -3  -4  -5</pre>
 =={{header|NetRexx}}==