How to delimit a punch file like Matlab (Import Data...) option?

Hi all,

I need to open a punch file (ASCII format file) in Matlab and change some values on that. From the following function to open and save the file in Matlab workspace. The problem is this function save the file in nx1 matrix. Does anyone know how can I import the punch file in a way that it splits spaces and commas to cells? Like what Matlab does using Import data option.

fid = fopen('tm2.pch','r');
MyText = textscan(fid,'%s ','delimiter','\n');
fclose(fid);
MyText = [MyText{:}];

For example, how to save the following data (a section of punch file) from text file to a 3x3 matrix?

MAT4     1001                           100.
MAT4     1002                           200.
MAT4     1003                           300.

Thanks a lot

Answer 1

[Star Strider]

We need you to attach ‘tm2.pch’ to provide specific code.

Knowing only what you’ve posted, adding 'CollectOutput' could do what you want:

MyText = textscan(fid,'%s ','delimiter','\n', 'CollectOutput',true);

[Ehsan Fatourehchi]

'CollectOutput' gives the same answer. Please find attached punch file.

[Star Strider]

I couldn’t find ‘MAT4’ anywhere in your file. I even opened it and looked at in ‘notepad’.

This code works to read it, and if ‘MAT4’ existed, a bit more code would produce the matrix you want. Since it doesn’t contain any ‘MAT4’ entries, I can’t write specific code to create your matrix.

The Code —

fid = fopen('tm2.pch','r');
MyText = textscan(fid,'%s%f%f%f','Delimiter','\t', 'HeaderLines',7, 'CollectOutput',true);
idx1 = strfind(MyText{1},'MAT4');
MAT4_rows = find(cell2mat(idx1));