Text File read and write out
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Hey guys, I'm new to Matlab, and hoping I can get some some help. I'm trying to read in a text file and write it to the format I want. fileread('file') will give me the following data
1356297 2 0.0521214521 0.0005944170 0.0016546078 0.0125977102
4197358 89 0.0523557459 0.1244454656 -0.164303258 -0.542853886
3679865 104 0.0540524244 -0.015693102 -0.004209815 0.0009847531
I want it to write this data to the following format.
"Node 1356297", "Node 4197358", "Node 3679865"
"<0.0005944170, 0.0016546078, 0.0125977102>", @
"<0.1244454656, -0.164303258, -0.542853886>", @
"<-0.015693102, -0.004209815, 0.0009847531>", @
Thanks, Thuan
댓글 수: 2
Fernando Fernandes
2017년 5월 24일
I think you may find your answer here:
https://www.mathworks.com/help/matlab/ref/textread.html
Walter Roberson
2017년 5월 24일
textread is not recommended; it has been pretty much replaced by textscan or other routines.
답변 (1개)
Walter Roberson
2017년 5월 24일
With your regular structure and no headers, you can use load() to read the file.
data = load('file');
ids = data(:,1);
vecs = data(:,4:end);
fid = fopen('Output.txt', 'wt');
fmt = [strjoin( repmat( {'"Node %d"'}, 1, length(ids), ', '), '\n'];
fprintf(fmt, ids);
fmt = ['"<', strjoin( repmat( {'%f'}, 1, size(vecs,2) ), ','), '>" @\n'];
fprintf(fmt, vecs.'); %transpose is important
fclose(fid);
댓글 수: 2
Walter Roberson
2017년 5월 25일
If I correctly count there as being 4 header lines, then,
fid = fopen('file', 't');
data = cell2mat( textscan(fid, '', 'HeaderLines', 4, 'CollectOutput', true) );
fclose(fid);
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