Want to have an input in while loop

I want to plot real time date using matlab. Those data I should be able to apply it manually

pressure = 0
x=0

while keep
x=[x,pressure];
plot(x);
grid
drawnow limitrate;
pause(1)
end

I want a way to to use input in side the while loop that will not stop the loop and when the user input a number that number will update the pressure.

Answer 1

[Rajanya]

Hi @Abdulaziz Almuammar,

You can use ‘inputdlg’ for this purpose to request input from the user.

The following line prompts the user to input appropriate ‘pressure’ value which is, by default, stored as an element of a cell array of character vector.

answer = inputdlg('Enter new pressure value:');

It is important to note here that this approach does not prevent the user from entering multiple or invalid inputs, so those checks need to be handled separately.

To convert ‘answer’ to a numeric array, ‘str2num’ can be used.

pressure = str2num(answer{1});

This ‘pressure’ value can then be used to plot the data accordingly.

For more details on ‘inputdlg’ and ‘str2num’, you can refer to their documentation pages by running the following commands in the MATLAB Command Window:

doc inputdlg
doc str2num

Hope this helps!