MATLAB: The error using “load” and “fgets” codes in MATLAB 2013a

load fgets

I just want to use "load" command and "fgets" command in same time.

fid is a txt file which contains the directories of 40 seperate file.

fid=

materialproperties/uniaxialelement1.txt

materialproperties/uniaxialelement2.txt

materialproperties/uniaxialelement3.txt

….

So i use fgets(fid) to get the directory of any file as

fgets(fid)= materialproperties/uniaxialelement2.txt

then I need the data of this file so i use" load" command

Read_Pr=load(fgets(fid))

this code work efficently in MATLAB 2014a but i have to run the code in MATLAB 2013a but i get an error.

So what can i do for running this code without any errors in MATLAB2013a?

Whats is difference in using "load" code?

Best Answer

Use fgetl, not fgets:

Read_Pr = load(fgetl(fid))
%                  ^

As its help clearly states, fgets includes the newlines at the end of the line (so this will not be a valid filename) but fgetl removes the newlines (giving a valid filename).

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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
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MATLAB: Concatenate data using fgets

You are closing the file in the loop. close the file after the loop. I assume the below should work.

function read_datapattern(filename)
fid = fopen(filename,'rt');
if fid < 0
  error('error opening file %s\n\n',filename);
end
pattern = fgets(fid);
for n = 1:32767
  nextline = fgets(fid);
  pattern = strcat(pattern, nextline);
fprintf(pattern);
fprintf('\n');
end
fclose(fid);

Best Answer

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MATLAB: To read a text file using matlab

MATLAB: Concatenate data using fgets

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