How to Save Values to a Variable Passing through a Loop

Hello,

I am trying to store values that are filtered through a loop to the variable 'LargeBunny'. This will be a X by 3 dimension matrix with depth, Xpos, and Ypos as column values. Ultimately, I want to save all values that pass through the filter in this matrix for future reference. How do I save the Xpos and Ypos to remember each value? For example, if I want to call the 5th row of the variable outside of the loop then the Xpos and Ypos of the 5th row can be called by 'LargeBunny(5,:)'

The code as written will only report the last value in the matrix.

Depth = zeros();
LargeBunny= zeros(numel(Depth),3);

for ii = 1:numel(Size(:,1))
    if Size(ii) > 1
        for k = 1:numel(Xpos(:,1))
        end 
        for m = 1:numel(Ypos(:,1))
        end 
        fprintf(id,'G0 X%.3f Y%.3f \n',Xpos(ii,:)',Ypos(ii,:)'); %go to XY position   
        LargeBunny = [Depth Xpos(ii,:)' Ypos(ii,:)']; %go to XY position     
    end 
end

[Sulaymon Eshkabilov]

A couple of obscure points in the code

(1) What is Size()? Is it a variable or size of a ... ??? variable

(2) Size(ii) > 1 is not quite clear.

(3) Construction of loops with an if statement is also a bit unclear.

Just presuming some points, is this what you are trying to get:

Depth = randi(15, 10,1);
Xpos  = linspace(0, 10, 10);
Ypos  = linspace(0, 20, 10);
LargeBunny = [];
    for ii = 1:numel(Xpos)
    fprintf('G0 = %f; Xpos = %f; Ypos = %f \n', [Depth(ii), Xpos(ii), Ypos(ii)])        
    LargeBunny = [ LargeBunny;
              Depth(ii), Xpos(ii), Ypos(ii);];
    end

G0 = 12.000000; Xpos = 0.000000; Ypos = 0.000000 
G0 = 15.000000; Xpos = 1.111111; Ypos = 2.222222 
G0 = 12.000000; Xpos = 2.222222; Ypos = 4.444444 
G0 = 12.000000; Xpos = 3.333333; Ypos = 6.666667 
G0 = 6.000000; Xpos = 4.444444; Ypos = 8.888889 
G0 = 11.000000; Xpos = 5.555556; Ypos = 11.111111 
G0 = 14.000000; Xpos = 6.666667; Ypos = 13.333333 
G0 = 5.000000; Xpos = 7.777778; Ypos = 15.555556 
G0 = 10.000000; Xpos = 8.888889; Ypos = 17.777778 
G0 = 8.000000; Xpos = 10.000000; Ypos = 20.000000 

    disp(LargeBunny)

   12.0000         0         0
   15.0000    1.1111    2.2222
   12.0000    2.2222    4.4444
   12.0000    3.3333    6.6667
    6.0000    4.4444    8.8889
   11.0000    5.5556   11.1111
   14.0000    6.6667   13.3333
    5.0000    7.7778   15.5556
   10.0000    8.8889   17.7778
    8.0000   10.0000   20.0000

[Deborah]

Size is just an integer column of numbers less than or greater than 1. All I am doing is selecting which data to apply the matrix selection to. I am sitll not sure how to save the values that pass through the loop to a new array.

[Dyuman Joshi]

It is still not clear to me what you want to do.

What is the purpose of the loop and how are the loops related to the values you want to store?

Answer 1

[Hassaan]

% Assuming Depth, Xpos, and Ypos are defined elsewhere
% Initialize LargeBunny with zero rows and three columns
LargeBunny = zeros(0, 3);

% Loop through your data
for ii = 1:numel(Size)  % Make sure 'Size' is defined in your workspace
    if Size(ii) > 1  % Apply your filter condition here
        % Assuming you have defined Xpos and Ypos corresponding to ii
        % Append a new row to LargeBunny
        LargeBunny = [LargeBunny; Depth(ii), Xpos(ii), Ypos(ii)];
    end
end

% Now LargeBunny has all the rows that passed through the filter.
% You can access the 5th row using LargeBunny(5,:) if it exists.

Make sure Depth, Xpos, and Ypos are vectors that have the same length as Size, and that each ii iteration corresponds to the related Depth, Xpos, and Ypos values.

Note: The inner loops for k and m in your provided code don't seem to serve any purpose as they stand. If these are meant to process Xpos and Ypos further, then ensure that you include relevant operations inside these loops. Otherwise, you can remove them.

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