MATLAB: How to change data and display a text using cell arrays.

call array

Greetings,
The program I'm developing takes the html code from an internet forecasting page, ignores all the html tags and stores the text on MATLAB as a cell array.
The problem is I can't get to replace some quotation marks I keep getting in the Output.
The program goes like this:
clc,clear;
urlwrite('http://weather.noaa.gov/cgi-bin/fmtbltn.pl?file=forecasts/marine/coastal/am/amz722.txt','Anegada_Passage_Southward.txt');
fid=fopen('Anegada_Passage_Southward.txt');
y=fgetl(fid);
data = textscan( fid, '%s', 'Delimiter', ''); %read the entire file as strings, one per line.
out = regexprep( data{1}, '<[^>]+>', '' ); %remove the HTML
for i=1:1:36
    if out{i}=='';
        setfield(out,{i},'');
    else
        getfield(out,{i});
    end
end
fclose(fid);
On the 'if' part I keep geeting this Error:
Error using ==> eq Matrix dimensions must agree.
Error in ==> pru at 12 if out{i}=='';
I want to repace those '' with empty lines to divide paragraphs.
What can I do?

Best Answer

The variable, out, is a cell array of strings. The functions, setfield and getfield, operate on structure arrays.
Replace the for-loop by
    for ii = 1:1:36
        if isempty( out{ii} )
            out{ii} = []; % or do nothing 
        else
            disp( out{ii} )
        end
    end
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