Error using fscanf Invalid file identifier.
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error at the line 63 of the attached code.
I want to read the data files and make a coupling file. sample data file and the code has been attached to the thread.
Please check and give me an answer for the following error.
The section of the code which is giving the error has been included.
%read files into 3 Dim variable: data
% Dim 1 - station number
% Dim 2 - 1:3 is eta, u, v
% Dim 3 - time steps
for numm = 1:nsta
FILE1 = fopen(sprintf('D:\Mejena_Case\FUNWAVE_Simulation\mejena_tsunami\work\output1\sta_%04d',numm),'r');
data1 = fscanf(FILE1,'%f',[4 Inf]);
sides(numm,:,start1:stop1) = data1([4 3 2],start1:stop1);
fclose(FILE1);
disp(sprintf('File %d has been read...',numm))
end
disp('All files read')
2 Comments
Stephen23
on 11 Jan 2024
Edited: Stephen23
on 11 Jan 2024
WARNING:
Both the question and the accepted answer have the same problem: they use escape characters in the SPRINTF format string without considering what effect they have. Depending on which character is escaped, this may either generate a (special) character or give a warning and not return any character, e.g.:
sprintf('\M')
The robust solution is to NOT place file separator characters in the format string, e.g.:
P = 'D:\Mejena_Case\FUNWAVE_Simulation\mejena_tsunami\work\output1';
F = fullfile(P,sprintf('sta_%04d.txt',7))
Accepted Answer
VINAYAK LUHA
on 10 Jan 2024
Edited: VINAYAK LUHA
on 11 Jan 2024
Change line 62 with
FILE1 = fopen(sprintf('D:\\Mejena_Case\\FUNWAVE_Simulation\\mejena_tsunami\\work\\output1\\sta_%04d.txt',numm),'r');
18 Comments
Walter Roberson
on 16 Jan 2024
The code has
neast = 0;
nwest = 131;
nsouth = 0;
nnorth = 0;
nsta = neast+nwest+nsouth+nnorth;
so nsta is 131
The code has
for numm = 1:nsta
FILE1 = fopen(sprintf('D:\Mejena_Case\FUNWAVE_Simulation\mejena_tsunami\work\output1\sta_%04d',numm),'r');
so the code will try to open up to sta_0131
However, your directory only has up to sta_0048 stored in it.
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