str2num
str2num(X, op) transforms matrix of strings X into a column vector of doubles. Set variable op to true (false by default), to handle non numeric strings, a non valid strings will be converted to NaN.
Examples
>> str2num('3.14')#
3.14
>> class(ans)#
double
>> str2num(['3' '1'; '5' '4'])#
31
54
>> class(ans)#
double
>> t1 = table(['1';'2'],{'Marie'; 'John'},'Variablenames', {'ID','Name'})
>> str2num(t1.ID)#
1
2
>> class(ans)#
double
>> str2num('str', true)#
NaN
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