How to properly delete cell element ?

I have a 1x12 cell. How do i remove the last element in the cell ? I tried cell{end} = [] but it did not work. It only emptied the last cell. I would like the result to be a 1x11 cell

Answer 1

[goerk]

use normal brackets

 cell(end) = [];

[Guillaume]

The reason being:

• curly brackets act on the content of a cell(s). It does not affect the container (the cell array) itself, so c{end} refers to what's in the last cell, and therefore c{end} = [] puts an empty matrix in that last cell.
• round brackets act on the cell array itself. So c(end) refers to the last cell, and c(end) = [] deletes it.

Answer 2

[Ceethal Kottakali Piyus]

You have to use round parentheses instead of curly braces (which act on the inner cell values and not on the cells themselves):

cell(end) = [];

[Tong Zhao]

Hi Ceethal,

What if I want to remove the second row of a 2x2 cell array?

cell_arr = {1,2;3,4}

cell_arr = 2×2 cell array
    {[1]}    {[2]}
    {[3]}    {[4]}

cell_arr(2,:) = []

cell_arr = 1×2 cell array
    {[1]}    {[2]}

Edit: I just found the expression myself. But I'd like to keep this thread for anyone who's running into the same problem.

Answer 3

[Amir Hosein Asaadi]

I sove it by creating variable again like this:

cell_var = {'var1','var2'};
cell_var = {'var1'};

I hope this work for you.

Answer 4

[Josep Llobet]

% Cell you want to copy
branques_pixels_new = {[55178]    [55593]   [62271]    [62686]    [66858]    [67273 123123 12123]}

% element you want to eliminate
n_elm_borrar = 3;

% New cell with the non- element
branques_pixels_new_2 = {};

% Operation
for n_elm = 1:length(branques_pixels_new)
    if n_elm ~= n_elm_borrar
        branques_pixels_new_2{end+1} = branques_pixels_new{n_elm};
    end
end

% New cell
branques_pixels_new_2

[Stephen23]

The simple and efficient MATLAB approach:

branques_pixels_new_2 = branques_pixels_new;
branques_pixels_new_2(n_elm_borrar) = [];

[Josep Llobet]

That's true, it's better that one