Cell array indexing in matlab

hi

I have an empty cell array

Let call it W

At the output It must have a cell array with two columns and n rows

Each element of columns is an array with variable length

I wanna write at the end of arrays in columns

How can access the last element of that arrays in the cells

for example W(1,2) end+1 i.e At the end of an array at the second column of first row

Answer 1

[fereshteh beygi ahmadvandi]

W{1,2}(1,end+1)

But first, define your empty cell array as follows:

W = cell(2,2);

[Adam Danz]

How does that differ from the existing answer below that suggests this same method? Your question stated that the empty cell array was already defined.

Note, that if you have a variable that stores all of the new end-point-values to be added to each cell element, you can do that in 1 line of code, also shown in my answer.

[fereshteh beygi ahmadvandi]

Thank you 🌹🌹🌹🌹🌹

I did not see your answer By the way, when you answered me, I had found the solution myself

I said that I wanna write at the end of that arrays i.e append element

I have to write the code as I said, otherwise it gives an error and does not have the correct output.

[fereshteh beygi ahmadvandi]

I wish I could ask you for help with any questions I may have in the future Of course, from a faster method other than this website

[Adam Danz]

> I had found the solution myself

That's the best way to learn! Nicely done.

Answer 2

[Adam Danz]

To access the last element of an array stored in cell array C at location {m,n},

y = C{m,n}(end);

To access the last element of all cells stored in cell array C,

y = cellfun(@(x)x(end),C);

Update

To append a value to the end of the vector stored in cell array C at location {m,n},

C{m,n}(end+1) = x;

To append a value M(m,n) in matrix M to the end of the vector stored in cell C{m,n},

C = reshape(arrayfun(@(i){[C{i}, M(i)]},1:numel(C)),size(C));

Demo:

C = reshape(arrayfun(@(i){rand(1,randi(100))},1:100),50,2); % original values
M = reshape(1:100,50,2);                                    % values to append
C2 = reshape(arrayfun(@(i){[C{i}, M(i)]},1:numel(C)),size(C));