MATLAB: Please help write a script to display the first line of this text file using fgetl

fgetlfopenscripttext file

I am very new to matlab so please explain it assuming I don't know very much about it. Thanks in advance. Here is the first few lines of the text file, I would like "Header Lines = 15" to be displayed. It would also be great if you could show me how to pull up other specific lines in the file!

Header Lines = 15
Tilt Illusion Experiment
Subject Number      = 1
Target Contrast     = 0.50
Flanker Contrast    = 0.50

Best Answer

fid=fopen('yourfile.txt')
line=fgetl(fid)
fclose(fid)

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MATLAB: To read a text file using matlab

Use fopen to open the file and then use fscanf or fgetl to read in the content. You can also use fread. For example, the following code reads the first line of the text.

fid = fopen(v,'r');
tline = fgetl(fid);
fclose(fid)

Just to remember close the file using fclose afterwards.

doc fopen
doc fclose
doc fread
doc fscanf
doc fgetl

MATLAB: How to change code in scripts using command

You can read the content of your m-file

fid=fopen('file.m')
line=fgetl(fid);
k=1;
while ischar(line)
   out{k,1}=line;
   line=fgetl(fid);
   k=k+1;
end
fclose(fid)

Insert what you want in the cell array out. Then save it in the original file

fid= fopen('file.m','w')
for k=1:numel(out)
   fprintf(fid,'%s\n',out{k})
end
fclose(fid)

Best Answer

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MATLAB: To read a text file using matlab

MATLAB: How to change code in scripts using command

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