Basics are:
fnames={'Lpp','xnstrp','nptstrp','offsets','c'}; % define struct fieldnames
inp=cell2struct(cell(5,1),fnames,1); % build empty input struct
fid=fopen('strpoffset1.txt','r'); % open file
cleaner=onCleanup(@()fclose(fid)); % create cleanup fncn to close open file
hdr=num2cell(cell2mat(textscan(fid,'%f',4,'headerlines',4))); % read first header
c=textscan(fid,'%f %f\n',hdr{4},'CollectOutput',1); % read data array to cell array
inp=cell2struct([hdr;c],fieldnames(inp),1); % save first input struct array
i=1; % initialize counter
while ~feof(fid)
i=i+1; % increment counter
hdr=num2cell(cell2mat(textscan(fid,'%f',4))); % read next header
c=textscan(fid,'%f %f\n',hdr{4},'CollectOutput',1); % read data array to cell array
inp(i)=cell2struct([hdr;c],fieldnames(inp),1); % save into input struct array
%ADDENDUM -- ERROR CHECK FOR MISMATCHED ARRAY SIZE
if size(c{1},1)~=hdr{4}
error('Mismatched size: \nOffsets=%d, found %d elements',inp(i).offsets,size(c{1},1))
end
end
fid=fclose(fid);
Above doesn't preallocate for the struct array; if file isn't too big probably won't be a terrible issue...
Worked here for beginning of the file; the file attached, however, isn't regular -- the third begins like
3
24
14.5000
11
12 7.9567
1.462 7.9387
which doesn't look consistent -- altho will still be able to read. the "12" looks out of place but may be right.
The real problem will arise later because there are blank records and the number of header records turns to three instead of four.
If this is real, you'll have to read the file record-by-record and parse it unless it is known a priori what and where these changes occur so can code for them.
