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matlabfor-loop
Tom J
Tom J

Reputation: 3

Matlab - How to output a for loop as a table with each iteration and result displayed

I am wondering how to output a for loop in Matlab so that I end up with a table where the first column is the iteration number and the second column is the result of each iteration. I want the results of each iteration to display not just the final answer.

As a very simple example I have the for loop function below.

Thanks.

p=10
for i=[1 2 3 4 5 6 7 8 9]
    p=2*p
end

Upvotes: 0

Views: 825

Answers (1)

ryan.d.williams
ryan.d.williams

Reputation: 650

In your example, i is the iteration variable, so you can reference it to get the iteration number.

I'm assuming you meant you want to output an array (not an actual table data structure). To make an array, you can use some simple concatenation:

p = 10;
arr = [];
for i = 1:9 % shortcutting your manual method here
   arr = [arr; i p]; % concatenate the current array with the new row
   p = p .* 2;
end

Which results in:

arr =

       1          10
       2          20
       3          40
       4          80
       5         160
       6         320
       7         640
       8        1280
       9        2560

If you actually want a table, then you can create the table from the array using the table function

Upvotes: 0

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