editing in string array

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ANKUR KUMAR 2017-11-1

编辑： KSSV 2017-11-1

a={'10','7','5','9','11','12','12','4'}

I want to put 0 at the starting of all those whose length is 1. How can I do this easily?

KSSV 2017-11-1

编辑：KSSV 2017-11-1

a={'10','7','5','9','11','12','12','4'} ;
L = cellfun(@length,a) ;
idx = L==1 ;
a(idx) = strcat('0',a(idx)) ;

KSSV 2017-11-1

cellfun works on the cells.....it is nothing but a for loop on each cell. arrayfun works on rows/ cols of matrices.

Stephen23 2017-11-1

编辑：Stephen23 2017-11-1

More accurately:

cellfun applies the function to the contents of each cell of a cell array.
arrayfun applies the function to each element of any array (which could be numeric, cell, etc).

Use whichever suits your purpose.

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