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2013-01-28T21:07:16.323
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Here's a direct way to create a static property in Matlab. The only difference between this implementation and a hypothetical (but impossible; see Mikhail's answer) true static property is the syntax for setting the member variable. <pre><code>classdef StaticVarClass methods (Static = true) function val = staticVar(newval) persistent currentval; if nargin >= 1 currentval = newval; end val = currentval; end end end </code></pre> Now the static property staticVar can be read via: <pre><code>StaticVarClass.staticVar </code></pre> ...and be set via: <pre><code>StaticVarClass.staticVar(newval); </code></pre> So, for instance, this is the expected output from a test of this functionality: <pre><code>>> StaticVarClass.staticVar ans = [] >> StaticVarClass.staticVar('foobar') ans = foobar >> StaticVarClass.staticVar ans = foobar >> </code></pre> This approach works just as well for private static properties like you requested, but the demo code is a little longer. Note that this is not a handle class (though it would work perfectly well on a handle class as well). <pre><code>classdef StaticVarClass methods (Access = private, Static = true) function val = staticVar(newval) persistent currentval; if nargin >= 1 currentval = newval; end val = currentval; end end methods function this = setStatic(this, newval) StaticVarClass.staticVar(newval); end function v = getStatic(this) v = StaticVarClass.staticVar; end end end </code></pre> ...and the test: <pre><code>>> x = StaticVarClass x = StaticVarClass with no properties. Methods >> x.getStatic ans = [] >> x.setStatic('foobar') ans = StaticVarClass with no properties. Methods >> x.getStatic ans = foobar >> </code></pre>
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1. POHow to obtain static member variables in MATLAB classes?
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