Help with an Assignment.

Down below is the code I have been working it is to display true or false through a series of if/else statements to determine the correct output. I am relatively new to matlab and any help in determining the reason that the output is not being display would be great. Thank you very much.

Var_1 = input('Enter age');
Var_2 = input('Enter Gender');
Var_3 = input('Enter chest pain type');
Var_4 = input('Enter resting blood pressure');
Var_5 = input('Enter Serum cholestoral');
Var_6 = input('Enter Fasting blood sugar');
Var_7 = input('Enter resttin ECG results');
Var_10 = input('Enter ST depression induced by exercise relative to rest');
Var_12 = input('Enter number of major vessels');
Var_13 = input('Enter heart condition');

if Var_3 <=3 && Var_10 <= 1.9 && Var_1 <=56
    disp('False')
elseif Var_1 > 56 && Var_2 <= 0 && Var_1 <= 59
    disp('True')
    if Var_3 <= 3 && Var_10 <= 10 && Var_1 > 56 && Var_2 <= 0 && Var_1 > 59; 
        disp('False')
    elseif Var_2 > 0 && Var_5 > 245 
        disp('True')
        if Var_3 <= 3 && Var_10<=1.9 && Var_1 > 56 && Var_2 > 0 && Var_5 <= 245 && Var_6 <= 0 && Var_12 <= 0
            disp('False')
        elseif Var_12 > 0
            disp('True')
            if Var_3 <= 3 && Var_10 <= 1.9 && Var_1 > 56 && Var_2 > 0 && Var_5 <= 256 && Var_6 > 0 
                disp('False')
            elseif Var_10 > 1.9 && Var_7 <= 1
                disp('True')
                if Var_3 <= 3 && Var_10 > 1.9 && Var_7 > 1 && Var_1 > 59
                    disp('True')
                elseif Var_1 <= 59
                    disp('False')
                    if Var_3 > 3 && Var_13 > 3 
                        disp('True')
                    elseif Var_13 <= 3 && Var_12 > 0 && Var_2 > 0 
                        disp('True')
                        if Var_3 > 3 && Var_13 <= 3 && Var_12 > 0 && Var_2 <= 0 && Var_11 > 1
                            disp('True')
                        elseif Var_11 <= 1 
                            disp('False')
                            if Var_3 > 3 && Var_13 <= 3 && Var_12 <= 0 && Var_4 > 145
                                disp('True')
                            elseif Var_4 <= 145
                                disp('False')
                            end
                        end
                    end
                end
            end
        end
    end
end

[Walter Roberson]

What are your sample inputs under which the result is not being displayed?

[John Marshall]

Hey there under none of the sample inputs is the result being displayed

[Image Analyst]

Have you tried stepping through the code with the debugger and examining why you're not going into the "if" block?

[Walter Roberson]

We readers do not know what the various codes are. For example we do not know which of the more than 83 genders code as 1, which one as 2, which one as 3, and so on. Give us a specific set of inputs.

For example it is obvious that your code will fail if you enter multiple values for some of the inputs, so we need to know exactly what you are entering.

Answer 1

[Eng. Fredius Magige]

Hi Its work just enter at least one data