User input to repeat a script

2023 10 11
3 个回答
更新时间：2023 10 11
6 次查看（30 天）

0 个投票

trying to give users the ability to re-run a program with the following
while(1)
%%code
m = input('Enter Y to start over. Enter Quiz to move on to the Quiz: ','s');
if m==['Quiz']
break
end
end
next section of code is the quiz
This loop for some reason makes certain graphs not get displayed, and for the program to not run right. the code in the middle is like 200 lines, and runs perfect without the whileloop.
any suggestions on how i could alternatively accomplish this same task of giving the user the ability to start the script from the start again?

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回答（3 个）

Walter Roberson
Walter Roberson 2023-10-11

0 个投票

if strcmp(m, 'Quiz')
Remember that in MATLAB, characters with ' around them forms a character vector. 'Quiz' is, for many purposes in MATLAB, the same as uint16([81 117 105 122])

6 个评论
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Matthew
Matthew 2023-10-11
The while loop it's self works, it just messes with the code. As soon as i add the while loop certain graphs wont be displayed from user input, and the whole thing just doesn't run correctly. i know it's not the code itself becuause it works perfectly fine without being sandwhiched in the whileloop
Walter Roberson
Walter Roberson 2023-10-11
Did you remember to use hold off for the axes that you used hold on for ?
Matthew
Matthew 2023-10-11
i have no hold on or hold off, pehaps i need to use them to make the while loop work correctly?
Matthew
Matthew 2023-10-11
The data be plotted is just one single output, on it's own individual graph
Dyuman Joshi
Dyuman Joshi 2023-10-11
It would be better if you could share the relevant code.
Matthew
Matthew 2023-10-11
lets use this code as an example
while(1)
z = linspace(0,4*pi,100);
r = 2*sin(z);
plot(z,r)
xlabel('z')
ylabel('2sin(r)')
title('Plot of the Sine Function')
x = linspace(0,2*pi,100);
y = sin(x);
plot(x,y)
xlabel('x')
ylabel('sin(x)')
title('Plot of the Sine Function')
m = input('Enter Y to start over. Enter Quiz to move on to the Quiz: ','s');
if m==['Quiz']
break
end
end
only the first graph is being displayed, i want both to be displayed, with the ability to restart the program

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Walter Roberson
Walter Roberson 2023-10-11

0 个投票

When you call "high level plotting commands" such as plot() or contour() or imshow() then by default they clear the current axes before drawing. You can use "hold on" to prevent that

1 个评论
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Matthew
Matthew 2023-10-11
编辑：Matthew 2023-10-11
i figured it out. i added
figure after every plot
then close all if the loop was selected

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Image Analyst
Image Analyst 2023-10-11
编辑：Image Analyst 2023-10-11

0 个投票

Try questdlg
while (1)
% Put script code here.
% Now ask use if they want to do it again.
promptMessage = sprintf('Do you want to run it again,\nor Quit processing?');
titleBarCaption = 'Continue?';
buttonText = questdlg(promptMessage, titleBarCaption, 'Continue', 'Quit', 'Continue');
if contains(buttonText, 'Quit', 'IgnoreCase', true)
return; % or break.
end
end

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Matthew
Matthew
2023-10-11

编辑：

Image Analyst
Image Analyst
2023-10-11

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