I'm getting an error and don't know how to fix it.

1 vue (au cours des 30 derniers jours)
Rebekah Higgins
Rebekah Higgins le 13 Mai 2021
Commenté : David Fletcher le 13 Mai 2021
So I'm averaging a bunch of data and instead of opening up all the files manually and such, I'm using a for loop. Here's what my code looks like.
close all;
clc;
for k=1:10
filename=sprintf('20.5in_%d.bin',k);
fid=fopen('filename','r');
data=fread(fid,[1,Inf],'single');
sum=sum+data;
end
Average=sum/10;
plot(data/max(data));
plot(Average/max(Average));
close all
However, I get this error when I try to run it.
Error using fread
Invalid file identifier. Use fopen to generate a valid file identifier.
Error in in205 (line 6)
data=fread(fid,[1,Inf],'single');
I'm not sure what the problem is or how to fix it. If I don't use a loop it works so any help would be greatly appreciated!!!
close all;
clc;
fid=fopen('20.5in_1.bin','r');
data=fread(fid,[1,Inf],'single');
plot(data/max(data));
close all
^the code that works without the loop

Réponse acceptée

David Fletcher
David Fletcher le 13 Mai 2021
The filename is the name held in the variable, the file isn't called 'filename'
fid=fopen(filename,'r')
  2 commentaires
Rebekah Higgins
Rebekah Higgins le 13 Mai 2021
Thanks!!! That's such a simple mistake! I can't believe I didn't catch that!
David Fletcher
David Fletcher le 13 Mai 2021
Easily done. I swear sometimes the brain sees what it thinks it should be seeing, and not what is actually there

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