how to make table of ip address numbers

I attached ip address data file. I want to make table of ip address numbers. i.e. suppose I have ip addresses

10.0.12.4 
10.0.12.5 
10.0.7.4 
10.0.8.5 
10.0.8.4

then it should be in table format with 4 columns

10  0  12  4 
10  0  2   5 
10  0  7   4 
10  0  8   5 
10  0  8   4

how to do this.

Answer 1

[Guillaume]

If using R2016b, you can use the new string type. It is then trivial to split the strings in one go with split and then convert to numbers with double:

numericip = double(split(string(X), '.'))

Otherwise, you can use the old-fashioned strsplit + str2double wrapped in a cellfun to create a vector per ip string. You have to use the 'UniformOutput', false option to store these vectors in a cell array, and then convert the whole cell array back to a matrix with cell2mat.

numericip = cell2mat(cellfun(@(ip) str2double(strsplit(ip, '.')), X, 'UniformOutput', false))

The first option is significantly faster (and less to type).

[Jay Hanuman]

works thank you.

Answer 2

[Daniel kiracofe]

strsplit() will split up the strings for you. Then use sprintf() to make the formatting

https://www.mathworks.com/help/matlab/ref/strsplit.html