import data and Looping for the file - matlab

Question

My purpose is to split the string into part then check whether the 'f11_data' contain those split word. if yes then return 0, if no then return 1. I have 100 strings, but it doesn't make sense to type the str/needles 100 inside my code times. How do I use looping to do that? I'm facing a problem using importdata.
str1 = 'http://en.wikipedia.org/wiki/hostname';
str2 = 'http://hello/world/hello';
str3 = 'http://hello/asd/wee';
f11_data1 = 'hostname From wikipedia, the free encyclopedia Jump to: navigation, search In computer networking, a hostname (archaically nodename .....';
f11_data2 = 'hell';
f11_data3 = 'hello .....';
needles1 = strcat('\<', regexpi(str1,'[:/.]*','split'), '\>')
needles2 = strcat('\<', regexpi(str2,'[:/.]*','split'), '\>')
needles3 = strcat('\<', regexpi(str3,'[:/.]*','split'), '\>')
~cellfun('isempty', regexpi(f11_data1, needles1, 'once'))
~cellfun('isempty', regexpi(f11_data2, needles2, 'once'))
~cellfun('isempty', regexpi(f11_data3, needles3, 'once'))
This is how I modified the above code using a loop:
data = importdata('URL')
needles = regexp(data,'[:/.]*','split') %// note the different search string
for i = 1:2
A11_data = needles{i};
data2 = importdata(strcat('f11_data', int2str(i)));
%feature11_data=(~cellfun('isempty', regexpi(data2, needles, 'once')))
%feature11(i)=feature11_data
~cellfun('isempty', regexpi(data2, needles, 'once'))
end
I get the error :
"
??? Error using ==> regexpi
All cells for regexpi must be strings.
Error in ==> f11_test2 at 14
~cellfun('isempty', regexpi(haystack, needles, 'once')) "

Answer 1

It's hard to tell what you are trying to do but, if you want to do something equivalent,
for i = 1:3
str = importdata(URL_LIST[i])
needle = strcat('\<', regexp(str,'[:/.]*','split'), '\>');
haystack = importdata(HAYSTACK_LIST[i]);
~cellfun('isempty', regexpi(haystack, needle, 'once'))
end
Obviously you need to define URL_LIST and HAYSTACK_LIST.