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copied!<p><strong>"GOLF" ANSWER:</strong></p> <p>This starts with the answer from <a href="https://stackoverflow.com/questions/1539343/problem-bug-loading-hexadecimal-data-into-matlab/1540031#1540031">mtrw</a> and shortens it further:</p> <pre><code>fid = fopen('testMixed.txt','rt'); data = textscan(fid,'%s','Delimiter','\n','MultipleDelimsAsOne','1',... 'CommentStyle','%'); fclose(fid); data = strcat(data{1},{' '}); data = sscanf([data{:}],'%i',[sum(isspace(data{1})) inf]).'; </code></pre> <p><strong>PREVIOUS ANSWER:</strong></p> <p>My first thought was to use <a href="http://www.mathworks.com/access/helpdesk/help/techdoc/ref/textscan.html" rel="nofollow noreferrer">TEXTSCAN</a>, since it has an option that allows you to ignore certain lines as comments when they start with a given character (like <code>%</code>). However, TEXTSCAN doesn't appear to handle numbers in hexadecimal format well. Here's another option:</p> <pre><code>fid = fopen('testMixed.txt','r'); % Open file % First, read all the comment lines (lines that start with '%'): comments = {}; position = 0; nextLine = fgetl(fid); % Read the first line while strcmp(nextLine(1),'%') comments = [comments; {nextLine}]; % Collect the comments position = ftell(fid); % Get the file pointer position nextLine = fgetl(fid); % Read the next line end fseek(fid,position,-1); % Rewind to beginning of last line read % Read numerical data: nCol = sum(isspace(nextLine))+1; % Get the number of columns data = fscanf(fid,'%i',[nCol inf]).'; % Note '%i' works for all integer formats fclose(fid); % Close file </code></pre> <p>This will work for an arbitrary number of comments at the beginning of the file. The computation to get the number of columns was inspired by <a href="https://stackoverflow.com/questions/1539343/problem-bug-loading-hexadecimal-data-into-matlab/1539410#1539410">Jacob's answer</a>.</p>

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