Fill cell array with consecutive numbers in Matlab

Question

Given myCellArray{10,3} = [];, I would like to fill in the first column with consecutive numbers (let's say 1 through 10). I know I could do it like this:

[myCellArray{1:10,1}] = deal(1,2,3,4,5,6,7,8,9,10)
myCellArray = 
    [ 1]    []    []
    [ 2]    []    []
    [ 3]    []    []
    [ 4]    []    []
    [ 5]    []    []
    [ 6]    []    []
    [ 7]    []    []
    [ 8]    []    []
    [ 9]    []    []
    [10]    []    []

However, if my cell array is much larger (say 1,000 rows rather than 10), writing out the comma-separated values obviously becomes tedious:

[myCellArray{1:10,1}] = deal(1,2,3, ... ,1000)

Is there a way to create this comma-separated "list" of numbers automatically? Something like (1:10)? I know I could assign the values via loops, but is there an elegant one-line solution or something close to that?

Divakar · Accepted Answer · 2015-03-20 18:43:29Z

3

This could be one way to do it with num2cell -

myCellArray(:,1) = num2cell(1:size(myCellArray,1))

In place of num2cell, you can use mat2cell which might not look very elegant though -

mat2cell([1:size(myCellArray,1)]',ones(1,size(myCellArray,1)),1)

edited Mar 20, 2015 at 18:43

answered Mar 20, 2015 at 18:37

Divakar

222k19 gold badges273 silver badges374 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Fill cell array with consecutive numbers in Matlab

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related