Want to delete ans from the output ou a function

Whenever I use this function, it always spits back an ans in the command window, how do I prevent this from happening?

function [matriz, k, file] = carregar_dados (file)

file = input('Introduza o nome do ficheiro > ', 's');
fid = fopen(file);
if fid ~= -1
    fprintf('O ficheiro foi aberto com sucesso! \n');
else
    while fid == -1;
        fprintf('O ficheiro não existe. \n');
        file = input('Introduza o nome do ficheiro > ', 's');
        fid = fopen(file);
    end
end
k = 0;
matriz = [];
while ~feof(fid);
    k = k + 1;
    i = 0;
    linha = fgetl(fid);
    
    for i = 1:4;
        linha(1) = [];
        [valor, linha] = strtok(linha, ',)');
        matriz(k,i) = str2num(valor);
        
    end
    
end
fclose(fid);
end

[James Tursa]

When you call the function, end that line with a semi-colon. Also, why do you pass in the variable 'file' as an input argument if you immediately overwrite it inside the function?

[Pedro Almeida]

Thanks for the file thing, already fixed it! But still, I put a semicolon after calling the function and it still spits back an ans into the command window, anything else I could try?

function [matriz] = carregar_dados_teste2();

file = input('Introduza o nome do ficheiro > ', 's');
fid = fopen(file);
if fid ~= -1
    fprintf('O ficheiro foi aberto com sucesso! \n');
else
    while fid == -1
        fprintf('O ficheiro não existe. \n');
        file = input('Introduza o nome do ficheiro > ', 's');
        fid = fopen(file);
    end
end

k = 0;
matriz = [];
while ~feof(fid)
    k = k + 1;
    i = 0;
    linha = fgetl(fid);
    
    for i = 1:4
        
        linha(1) = [];
        [valor, linha] = strtok(linha, ',)');
        matriz(k,i) = str2num(valor);
    end
    
end
fclose(fid);
end

[Stephen23]

" I put a semicolon after calling the function..>"

No, you added a semi-colon in the function signature line. That will do nothing.

"and it still spits back an ans into the command window..."

Yes, because you did not put a semi-colon after the function when you call it.

"anything else I could try?"

You could put a semi-colon after the function when you call it.

But given that your function imports some data and then you assign this to ANS which you now want to ignore... I suspect that you should actually assign the function output to a variable in order to use that imported data for something.

These tutorials teach basic MATLAB concepts: https://www.mathworks.com/help/matlab/getting-started-with-matlab.html

[Pedro Almeida]

Thank you so much! It's working perfectly now.