How do I prompt user to re-input value if first attempt is incorrect?

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Lauren-Xante Claassen
评论： Lauren-Xante Claassen 2023-7-19
I am trying to prompt user to input a value for R^2, accepting or rejecting value within a range 0-1. If value is correct, proceed to next input question. If value is incorrect, display error message to user and re-prompt them to insert new value within range. Currently, I get the error but it does not allow me to re-enter a new value for that variable, it simply continues to next prompt. I need to create a loop of some kind but am not sure how?
prompt = inputdlg('Please enter an R^2 value for Cement:');
data = str2double(prompt);
if 0<= data && 1>=data
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
else
errordlg('Input must be between the values 0-1.');
return
end

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采纳的回答

Matt J
Matt J 2023-7-19
编辑：Matt J 2023-7-19
Something like this, perhaps?
exit=false;
msg='Please enter an R^2 value for Cement: '
while ~exit
data = str2double( inputdlg(msg) );
exit = (0<= data && 1>=data);
if ~exit
msg = 'Input must be between the values 0-1. Please re-enter: ';
end
end

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