Reading a text file

Hey everyone!

I have a question regarding textscan[]; command.

I have a file and I want to read it, but somehow I can't get it to read the I want to. The file looks like this :

CsF 33 734824

Al 22 734824

NaCl 77 734824

This is a mere sample and it updates now and then but that's not important. I want it to read in a way that each cell has an information about change. The change consists of element, mass and MatLab date number. So in this case a cell array would be "CsF 33 734824" or {3x1}. I have only been able to read it nicely, but the problem is that all three informations get put into one cell.

So I have whitespace and newline separators.

fid = fopen('Spojine.txt');
R = textscan(fid, '%s', 'delimiter', '\n');
fclose(fid);

If someone would be nice enough to assist my code, that would be lovely! :)

Answer 1

[Fangjun Jiang]

I recommend Jan's approach because it puts string into sting and numerical to numerical. But if you want it, you can use reshape().

fid = fopen('test.txt');
R = textscan(fid, '%s');
S=reshape(R{:},3,[]).';
fclose(fid);

Answer 2

[Jan]

fid = fopen('Spojine.txt');
R = textscan(fid, '%s %f %f', 'delimiter', ' ')
fclose(fid);

Then the names are found in the cell string R{1}, and the values as vectors in R{2} and R{3}.

[Slobodan Djordjevi?]

Thanks for a quick reply!

This is exactly what I don't want :)

I'm sorry you misunderstood.

Your code simply puts columns into cell string and 2 vectors.

I want it to read rows. The exact opposite.

[Jan]

@Slobodan: Waht about posting exactly, what you want as output? The "exact opposite" is not well defined.

Answer 3

[Slobodan Djordjevi?]

Thank you both!

Reshape is the thing I was looking for.

Jan, you are right, it would create problems later on if I had strings and numeric data in one.

I should have done it with structers, but I think I can avoid those.

Cheers from Slovenia.

Slobodan

[Fangjun Jiang]

Or you could avoid using reshape,

%%

fid = fopen('test.txt');

R = textscan(fid, '%s %s %s','collectoutput',true);

fclose(fid);