ID3-Algorithm-Implementation-on-IRIS-Dataset/findClass.m at master · sai-sreenath/ID3-Algorithm-Implementation-on-IRIS-Dataset · GitHub

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function [ind_val] = findClass(tree,trainRow_vals,attributes_names,trainData_vals)
ind=find(attributes_names==tree.value);
ind_val=trainRow_vals(ind);
col_size=sort(unique(trainData_vals(:,ind)));
for i=1:size(col_size,1)
	if(ind_val==col_size(i))
		if(i==1)
			if(~isnumeric(tree.first))
                findClass(tree.first,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.first;
			end
		end
		if(i==2)
            if(~isnumeric(tree.second))
                findClass(tree.second,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.second;
			end
        end
        if(i==3)
            if(~isnumeric(tree.third))
                findClass(tree.third,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.third;
			end
        end
        if(i==4)
            if(~isnumeric(tree.fourth))
                findClass(tree.fourth,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.fourth;
			end
        end
        if(i==5)
            if(~isnumeric(tree.fifth))
                findClass(tree.fifth,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.fifth;
			end
        end
        if(i==6)
            if(~isnumeric(tree.sixth))
                findClass(tree.sixth,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.sixth;
			end
        end
        if(i==7)
            if(~isnumeric(tree.seventh))
                findClass(tree.seventh,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.seventh;
			end
        end
        if(i==8)
            if(~isnumeric(tree.eight))
                findClass(tree.eight,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.eight;
			end
        end
        if(i==9)
            if(~isnumeric(tree.nine))
                findClass(tree.nine,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.nine;
			end
        end
        if(i==10)
            if(~isnumeric(tree.ten))
                findClass(tree.ten,trainRow_vals,attributes_names,trainData_vals);
            else
                ind_val=tree.ten;
			end
		end
	end
end
end