Save while loop data?

If I have a while loop that records certain data points, I know how to fprintf in each time the loop goes around, but how can I save these to a matrix without the values getting replaced each time? The loop records the (x,y) coordinates of the cursor every time I click the mouse, and I want to export this into a matrix with all the x values and with all the y values if possible.

Thank you!

Answer 1

[Mohammad Abouali]

You can do it like this:

% first initialize myCoordList to an empty matrix
myCoordList=[];

while (some condition)
 % some code that get's your x and y code
 myCoordList=[myCoordList; [x, y]];
end

This way as you get more x and y pairs another row is added to myCoordList.

instead of using

myCoordList=[myCoordList; [x, y]];

you can also use:

myCoordList(end+1,:)=[x, y];

(Just use one of them not both)

[Katerina Tetzloff]

Thank you so much!!

[Mohammad Abouali]

You are welcome.

[bipul]

It works myCoordList(end+1,:)=[x, y];

[Michael T]

I found this really helpful

myCoordList(end+1,:)=[x, y];

Just what i was having trouble with for a course an assignment at uni. Really struggled with the loops in general but this bit of code has really helped. Thanks

[Evan Collins]

You are a true hero thank you for your service - CUA CSC 113 Class

[Syed Abdul Rafay Hammad]

You are a champ man. This is the farmost simplest and fastest way. Thank you

[Cholisina]

I really happy to found this, thanks a lot

[Mouli]

I have no words, how to thank you. God bless you. I was trying my code for hours and value was getting reset everytime. Thanks a lot.

Answer 2

[shipakane ndhlovu]

Can someone please explain to me, what is really happening I see the coding working with just using that but what does it mean