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          <a data-toggle="collapse" href="#vars-1">Variables</a>
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            <a class="list-group-item" href="../type/doe_model.html#variable-coefficients">coefficients</a>
            <a class="list-group-item" href="../type/doe_model.html#variable-map~6">map</a>
            <a class="list-group-item" href="../type/doe_model.html#variable-nway~3">nway<