Question

If I have an input like [1 2 3; 4.0 c] and I want it to output it like 1234.0c in matlab. What function can I use ? I am looking for something like trim in php.

Any idea ?
Thanks

Answer 1

You can use isstrprop function with approppriate categories. For your case,

>> str = '1 2 3; 4.0 c';
>> str(isstrprop(str, 'alphanum') | str == '.')

ans =

1234.0c

You can use functions like isletter, isnumeric, etc. if you like.

Besides, you can create your own function in one line as follows

>> myTrim = @(x)(x(isstrprop(x, 'alphanum') | x == '.'));
>> myTrim(str)

ans =

1234.0c

Note that you ask [1 2 3; 4.0 c] as an input which is not a proper syntax for MATLAB. I assumed you wanted to ask for a string. In addition, trim actually implies removing leading and trailing white space from a string and there is strtrim for this in MATLAB.