how do I remove special characters from my cell array strings?

I have a cell array of the sorts:

{'508-647-7000'}    {' [phone]'}    {' 617-555-1212'}

I need the special characters and the spaces removed from these. The result should look something like this:

{'5086477000'}    {'5086477001'}    {'6175551212'}

I tried writing the following cell function to do it:

characters = ['(',')',' ','-'];
s_nos=cellfun(@(x) x~=characters,s_split, 'UniformOutput', false);

but I am getting the following error: * Matrix dimensions must agree.*

Kindly help.

[Srishti Saha]

Okay, I did a slight experimentation of my own and figured it can be done in this manner:

s_nos=regexprep(s_split,'[^0-9]','');

[Rik]

You can enter that solution as an answer and accept it.

You can also use isstrprop to keep only digits:

s_nos=cellfun(@(x) x(isstrprop(x,'digit')),s_split, 'UniformOutput', false);

[Srishti Saha]

Thanks Rik Wisselink

Answer 1

[Srishti Saha]

This worked for me

s_nos=regexprep(s_split,'[^0-9]','');