How to return the index of a cell array?

Hi,

My code consists of 3 parts:

1- to select randomly a "cell" from a cell array. 2- return the index of the selected "cell". 3- delete the selected cell from the original cell array.

I did the first part and I got:

X =

    [   98.5004]
    [4x1 double]
    [5x1 double]

Then, I wanted to select a cell randomly from X and I got (example):

[4x1 double]

which is the second cell.

So, How to return its index? (manually its index is X(2)). what if I have a lot of cells? I know that "find" can be used for normal matrices but when I tried to do the same for the cell arrays, it didn't work! I read about the "cellfun" but it confused me!

last part depends on the second part! I will not be able to delete the selected cell from (X) without knowing its index! I want to delete it because when I will select randomly again from X, " I don't want to select again the same cell!

Answer 1

[Nut]

Hi,

is this example good for you?

X{1} = 1;

X{2} = [2 2 2 2];

X{3} = [3 4 5 6 7];

random_index = randi(length(X));

random_cell = X(random_index);

X{random_index} = [];

X = X(~cellfun('isempty',X));

[Sara Al Shamsi]

Yes it is good.

thank you.