Why I can't load the life?

Hello,

I want to load a file collection1.txt

So I wrote

function [output]= calculate_tfidf('E:\backup\Media\collection1.txt')
end

But when I run the program to see if file has been loaded I get the message bellow

Error: File: calculate_tfidf.m Line: 2 Column: 36
Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct
matrices, use brackets instead of parentheses.

Thank you in advance

Answer 1

[Walter Roberson]

The only operations that can be present in a "function" line are:

[]  -- around the list of output variables only, no-where else on the line
() -- around the list of input variables only, no-where else on the line
comma -- separate the list of input variables and list of output variables
~ -- replacing one of the input variables, indicating it should be ignored

Calculations and indexing of all varieties are not permitted.

In particular it is never valid to have a quoted string in the function line.

Your code should look like

function [output] = calculate_tfidf(filename)
  output = load(filename);
end

and you should invoke it like

output = calculated_tfidf('E:\backup\Media\collection1.txt');

[Isida Kaloshi]

Dear Mr Roberson,

Thank you very much for your reply. I tried to do what you advise me but I'm stll getting an error. Pherphaps I didn't understand something. Below is the code

function [output]= calculate_tfidf(collection1.txt)

output = calculated_tfidf('E:\backup\Media\collection1.txt't')

end

[Walter Roberson]

Store the next 3 lines in calculate_tfidf.m

function [output] = calculate_tfidf(filename)
output = load(filename);
end

Now go to the command line and invoke

output = calculated_tfidf('E:\backup\Media\collection1.txt');

[Isida Kaloshi]

Dera Mr Roberson, thank you again for your reply. I stored the 3 line in calculate_tfidf.m and I went to command window to invoke output = calculate_tfidf('E:\backup\Media\collection1.txt');

but I'm getting to errors

Error using load Number of columns on line 2 of ASCII file E:\backup\UNIVIE\MRS\collection1.txt must be the same as previous lines.

Error in calculate_tfidf (line 3) output = load(filename);

[Stephen23]

@Isida Kaloshi: load is not suitable for importing your text file. Either pick a method yourself from the available text-file importing functions:

https://www.mathworks.com/help/matlab/text-files.html

or upload a sample file by clicking the paperclip button, and we will help you.