Text File read and write out

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

[Fernando Fernandes]

I think you may find your answer here:

https://www.mathworks.com/help/matlab/ref/textread.html

[Walter Roberson]

textread is not recommended; it has been pretty much replaced by textscan or other routines.

Answer 1

[Walter Roberson]

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);

[Thuan]

How would I do it if I have a heading let say

                         MSC.Patran 21.1.348049 Fri Jul 03 23:12:17 PDT 2015 - Analysis Code: MSC.Nastran 
  Load Case: 653215
  Result

1356297           2    0.0521214521  0.0005944170  0.0016546078  0.0125977102

[Walter Roberson]

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);