Chnage number display format

I sort of figure it out. But I am still struggling to maintain the spacing between 3rd columns and 4th column. There shoud be 3 spacing between col 3 and 4.

sample=dlmread('sample.txt',' ','A2..D10');
dlmwrite('test.txt',sample,'delimiter',' ','precision', 10)

How can I modify the above code to achieve that?

Thanks.

Damith 2014-5-24

在 MATLAB Online 中打开

Hi,

I was able to develop the code below. But in the command window I can see the output the way I want to produce. But the test.txt file is blank.

Command window output:

3000001 -99.9 -99.9   0.0
3000002 -99.9 -99.9   0.0
3000003 -99.9 -99.9   0.0
3000004 -99.9 -99.9   0.0
3000005 -99.9 -99.9   0.0
3000006 -99.9 -99.9   0.0
3000007 -99.9 -99.9   0.0
3000008 -99.9 -99.9   0.0
3000009 -99.9 -99.9   0.8
3000010 -99.9 -99.9   0.0

I dont understand what I am doing wrong here and why the test.txt file is bank. I want the command window output to be written in the text file.

sample=dlmread('sample.txt',' ','A2..C11');
Data=[sample(1:10,:) Gist1(1:10,5)];
dlmwrite('test.txt',Data,'delimiter',' ','precision', 10) 
fid = fopen('test.txt','wt');
for row = 1 : size(Data, 1);
    fprintf('%d %.1f %.1f   %3.1f\n', Data(row, :));
end
fclose(fid);