MATLAB: Help fget1 says the function does not exist. I am using Matlab 2017a, what can be the problem

does not existfget1reading text file

fget1 is supposed to read lines from a text file, but I get the error message saying that fget1 does not exist. What can be the problem? I downloaded the newest Matlab version but I still have the problem.

Best Answer

You need

fgetl

not

fget1

(that is the lowercase L, not the number one).

Related Solutions

MATLAB: Writing parameters to a text file

Writing a text file in MATLAB is very easy. Take a look at the documentation for the function fopen, fprintf, and fclose.

doc fopen
doc fprintf
doc fclose

On a quick thought, a brief example:

fileID = fopen('myFileName', 'wt'); % Open and create file in text writing mode.
% Write the content to the log text file.
fprintf(fileID, ' =======================================\r\n');
fprintf(fileID, '|| LOG INFORMATION              ||\r\n');
fprintf(fileID, ' =======================================\r\n\r\n\r\n');
fprintf(fileID, 'Wavelength\t%s\r\n', wavelength); % "wavelength" is a string.
fprintf(fileID, 'Source Object\t%s\r\n', sObject); % "sObject" is a string.
fprintf(fileID, 'Value\t%f\r\n', value); % "value" is a float.
fclose(fileID); % Close file.

Notice that \r\n is necessary for a new line in Windows (more information in fprintf documentation).

MATLAB: While 1 and fget1 loop.

while 1 is the same as while true. It means loop forever. The only way to stop the loop is to use a break statement, which is what you're doing with the

 if ~isempty(answer), break; end

Another way to write the loop would have been:

answer = '~'; %anything not empty so the loop starts
while ~isempty(answer)
    head_lines = head_lines+1
    line = fgetl(fide)
    answer = findstr(line,'END OF HEADER')
end

Best Answer

Related Solutions

MATLAB: Writing parameters to a text file

MATLAB: While 1 and fget1 loop.

Related Question