1 个投票

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?

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KSSV
KSSV 2017-11-1
编辑：KSSV 2017-11-1

1 个投票

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

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ANKUR KUMAR
ANKUR KUMAR 2017-11-1
Could you please help me to explain, when to use @cellfun and when to use @arrayfun
KSSV
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
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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