Why I have problem in my program.

I am getting the following error

Attempt to execute SCRIPT load as a function:
/Users/naoki/Documents/MATLAB/Add-Ons/TS2004.07/load.m
Error in load (line 17)
       mydata{i,k} = load(filename);

And this is my programming:

numFiles = 31;
mydata = cell(31, 7);
for i = 1:numFiles
    if i<10
       daystr_j = ['0', num2str(i)];
    else
       daystr_j = num2str(i);
    end
    for k = 0:7
        j = 3*k;
       if j<10
          daystr_j = ['0', num2str(j)];
       else
          daystr_j = num2str(j);
       end
       filename = ['TS2004.07.',daystr_i,'.',daystr_j,'00.txt'];
       mydata{i,k} = load(filename);
    end 
end
I want to load all text datas, TS2004.07.01.0000.txt to TS2004.07.31.2100.txt.
Please give me any advice.

[Walter Roberson]

By the way:

daystr_i = sprintf('%02d', i);

saves you from having to test the value or add the leading '0' or do the num2str()

Answer 1

[Star Strider]

You have written a script called load.m:

/Users/naoki/Documents/MATLAB/Add-Ons/TS2004.07/load.m

That is preventing you from using the MATLAB core load function. This is called ‘overshadowing’, and is to be absolutely avoided.

The solution is to name your function something else, like ‘my_load.m’ or something even more descriptive of its function.

[James Ryan]

Better than my answer. But still fix the variable names...

[Naoki Ishibashi]

Thank you for answer. I tried, but I still have a same error.

[Star Strider]

My pleasure.

Type this in your Command Window:

q = which('load', '-all')

When I run that, I get:

q = 

      'built-in (C:\Program Files\MATLAB\R2016a\toolbox\matlab\general\load)'
      'C:\Program Files\MATLAB\R2016a\toolbox\shared\reqmgt\+rmiml\@RmiMlData\RmiMlData.p'
      'C:\Program Files\MATLAB\R2016a\toolbox\shared\reqmgt\+rmidata\@RmiData\RmiData.p'
      'load is a Java method'
      'load is a Java method'
      'load is a Java method'
      'C:\Program Files\MATLAB\R2016a\toolbox\matlab\winfun\@COM\load.m'

That is all you should get. If you get any other results, that will indicate where the problem is.

Answer 2

[James Ryan]

It could be a simple bug. You use daystr_i and daystr_j in the filename, but you never set daystr_i. It looks like you set daystr_j twice by accident. Actually it might be a good idea to use variable names which don't look so much alike.

Try that and respond if there's still a problem.

[Naoki Ishibashi]

Thank you for answer. I tried but I still have same error.