How to progress from one user input to the next?

I am trying to move through a series of user inputs, e.g.:

Q1 - Please enter an R^2 value for Cement: value must be within numerical range.

If they answer incorrectly, I want it to display an error: ('Input must be between the values 0-1.').

If they answer correctly, I want a message that says: Value acceptedand then to to move on to the next question (user input).

When they have completed the last question, I want it to display a message that says: Operation Completed, so they know they have finished.

Below is the code I have, the problem is, if they enter an incorrect value the error appears but the next user input appears over and begins. How do I amend my code to create a waterfall effect through the questions please?

% Prompt user to input a value for r^2 for all ingredients, accepting or rejecting value within a range. Display message to user.

prompt = inputdlg('Please enter an R^2 value for Cement:');

data = str2double(prompt);

if 0<= data & 1>=data;

f = msgbox("Value accepted");

else;

errordlg('Input must be between the values 0-1.');

end;

prompt = inputdlg('Please enter an R^2 value for Blast Furnace:');

data = str2double(prompt);

if 0<= data & 1>=data;

f = msgbox("Value accepted");

else;

errordlg('Input must be between the values 0-1.');

end;

prompt = inputdlg('Please enter an R^2 value for Fly Ash:');

data = str2double(prompt);

if 0<= data & 1>=data;

f = msgbox("Operation Completed");

else;

errordlg('Input must be between the values 0-1.');

end;

Answer 1

[Cris LaPierre]

An error dialog does not terminate code execution.

You might consider using error instead. If you prefer the error appearing in a dialog box, then you can add a return command after errordlg to terminate code execution.

[Lauren-Xante Claassen]

I used the return command but I am still get two pop-ups at the same time?

[Lauren-Xante Claassen]

If I use the error command it stops to display error and does not allow user to return to input correct variable and continue through prompts?

[Cris LaPierre]

Yes, that aligns with what I said.

I tested by running the script in the editor. You are testing in the command window. The behavior is different. Try working in a script instead of the command window.