Find strings from an cell array and create a new cell array

I want to find the strings from an cell array (m x n) and add those identified strings in new cell array (m x n), by using matlab, for example:

Human(i,1)={0
1
34
eyes_two
55
33
ears_two
nose_one
mouth_one
631
49
Tounge_one}

I want to remove the numbers and have just strings

New_Human(i,1)={eyes_two
ears_two
nose_one
mouth_one
tounge_one}

Solution

Based on your comment it sounds like all your data is being stored as strings. In that case you can use the following method to remove all strings which represent a valid number.

H = {'0'; '1'; '34'; 'eyes_two'; '55'; '33'; 'ears_two'; 'nose_one'; 'mouth_one'; '631'; '49'; 'Tounge_one'};

idx = cellfun(@(x)isnan(str2double(x)), H);
Hstr = H(idx)

Output

Hstr = 
    'eyes_two'
    'ears_two'
    'nose_one'
    'mouth_one'
    'Tounge_one'

The code determines which strings do not represent valid numeric values. This is accomplished by checking if the str2double function returns a NaN result on each string. If you want to understand more about how this works I suggest you read the documentation on cellfun.