MATLAB: Splitting number from its units

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HI, I have a cell array with following values:
'1mcg/kg'
'1mcg/kg'
'1mcg/kg'
'0.7mcg/kg/hr'
'0.7mcg/kg/hr'
'0.5mcg/kg/hr'
'0.5mcg/kg/hr'
'0.5mcg/kg/hr'
How do i split this into numbers and units? I need the output in two cell arrays something like:
'1' 'mcg/kg'
'1' 'mcg/kg'
'0.7' 'mcg/kg/hr'
'0.5' 'mcg/kg/hr'

Best Answer

Try
>> cac = regexp( '0.7mcg/kg/hr', '([\d\.]+)|(\D+)', 'tokens' );
>> cac{:}
ans = 
    '0.7'
ans = 
    'mcg/kg/hr'
>> cac = regexp( '0.7mcg/kg/hr', '([\d\.]+)|(\D+)', 'match' );
>> cac{:}
ans =
0.7
ans =
mcg/kg/hr
>>
and read expression — Regular expression
Note: Numbers in the unit string will cause problems
&nbsp
This returns leading digits and dots as the value and the rest of the string as the unit.
>> cac = regexp( '0.7mcg2/kg/hr', '\<([\d\.]+)(.+)\>', 'tokens' );
>> cac{:}
ans = 
    '0.7'    'mcg2/kg/hr'
>>
Whatever mcg2 stands for.
And as Azzi shows regexp takes a cell array of strings in place of a single string.
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