Decision Tree to If-Else Rules

Is there any method to convert directly the decision tree from Classification Tree Viewer to If-Else rules ?

[Mario Buser]

Would be interested in a solution as well. WEKA, for example, is able to export if/else statements.

Answer 1

[Koorosh Aslansefat]

I am not sure what exactly you want but the following code can be useful considering that you saved the decision tree as "tc".

CP = tc.CutPoint;
NC = tc.NodeClass;
for ii = 1:size(CP,1)
    if ~isnan(CP(ii))
        fprintf('if x%d < %f then node %d elseif x%d >= %f then node %d else %d \n',str2num(NC{ii}),CP(ii),ii+1,str2num(NC{ii}),CP(ii), ii+2,ii)  
    elseif isnan(CP(ii))
        fprintf('Class = %d \n',str2num(NC{ii}))   
    end
end

This equal to veiw(tc)