average of first element of every cell

Hello,

I have gotten such a headache trying to solve this one. It shouldn't be that difficult.

I have a table. Every cell has a vector coordinates like this [a b c] (a, b and c are some numbers).

I would like to do the mean of the first, second and third element of the every column. That is, if I have 9 columns I should get 9 vectors with the mean of every column.

I tried like this:

Average_Vector{j,i} = [mean(Vector_per_Point{j,i}(1)),mean(Vector_per_Point{j,i}(2)),mean(Vector_per_Point{j,i}(3))];

Vector_per_Point is the table containing a vector in each cell.

I know this line of code is wrong, as it only makes the mean of a cell. That means that I get the same table as in Vector_per_Point (since the average of only one number is the same number in itself).

The written line of code is in a for loop j=... and this loop is in another for loop i =...

Thank you.

Answer 1

[Ameer Hamza]

The exact solution depends on how your data is structured. I guess the following will work

Average_Vector = mat2cell(mean(cell2mat(Vector_per_Point)), 1, 3*ones(size(Vector_per_Point,2),1))

If it does not work, please attach your variable in a .mat file.

[Diego Hens]

Thank you for the quick and correct solution :)

[Ameer Hamza]

I am glad to be of help! :)