MATLAB: How to separate date and time of a raw date

data

>> a = untitled.startDate(1:10)
a = 
    10×1 categorical array
       2013-07-10 00:01:00.0 
       2013-07-17 00:01:00.0 
       2013-06-29 00:01:00.0 
       2013-07-17 00:01:00.0 
       2013-05-11 00:01:00.0 
       2013-05-31 00:01:00.0 
       2013-06-06 00:01:00.0 
       2013-08-31 00:01:00.0 
       2013-05-21 00:01:00.0 
       2013-08-06 00:01:00.0 
>>  a.Format = 'dd-MMM-yyyy'
Error using categorical/subsasgn (line 87)
Attempt to assign field of non-structure array.

Best Answer

arrayfun(@(x) strsplit(x,' '),string(a),'UniformOutput',false)
string(a) - this makes the data easily process-able, converts to a string array.
@(x) strsplit(x,' ') - this is a function that splits each string into parts whenever a space(' ') is located(which works for your case)
arrayfun - applies the above function to each "row" in the string array.
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