import an easy file

I know it is a easy question, but I should be extremely grateful if someone give me and answer. I have a string with a complete path. How do I Import this textfile? I know it is stupid, but i shoud thank you 1000 times if you cam help me. I get the message unable to import file.

[Elias Gule]

please attach your text file, I can help you as soon as now!

[Rik]

What code are you using to import the file? Because the error text is not a usual error message.

[Erik Verdijk]

clear all;
close all;
[FileName,PathName] = uigetfile('../*.csv','MultiSelect','off','title','path');

fileID = fopen(FileName);
C = textscan(fileID,'%d%d%d%s%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d','HeaderLines',80,'Delimiter','/t');
fclose(fileID);

[Erik Verdijk]

and I get an empty matrix

Answer 1

[Elias Gule]

In this code:

[FileName,PathName] = uigetfile('../*.csv','MultiSelect','off','title','path');

FileName is simply the name of the file you selected. So if the file is not located in the present working directory, fopen will not be able to read it. So it will return an fid of -1, which is an invalid file 'pointer'.

What you need is to supply the full path of the file to fopen. So doing this:

fid = fopen(fullfile(PathName,FileName));

will return a valid file 'pointer'.

[Erik Verdijk]

clear all; close all; answer = 4;

while answer > 1 [FileName,PathName] = uigetfile('../*.txt','MultiSelect','off','title','path'); fid = fopen(fullfile(PathName,FileName)); fileID = fopen(fid); C = textscan(fileID,'%d%d%d%s%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d','HeaderLines',80,'Delimiter','tab'); fclose(fileID); answer = questdlg('Do you want to select an other file?', ... 'Options', ... 'Yes','No','No'); switch answer case 'Yes' answer = 4; case 'No' answer = 1; end while answer > 3 [FileName,PathName] = uigetfile('../*.txt','MultiSelect','off','title','path'); fileID = fopen(FileName); C = textscan(fileID,'%d%d%d%s%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d','HeaderLines',80,'Delimiter','tab'); fclose(fileID); answer = questdlg('Do you want to select an other file?', ... 'Options', ... 'Yes','No','No'); switch answer case 'Yes' answer = 4; case 'No' answer = 1; end end end

[Elias Gule]

You made a little error.

   fid = fopen(fullfile(PathName,FileName)); fileID = fopen(fid);

Is the one that causes the problem.

What you referred to as fileID, is actually what I referred to as fid. So change this line to:

fileID = fopen(fullfile(PathName,FileName));

[Elias Gule]

Please change your delimiter option from "tab" to "\t".