Code only works in the command window
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    Guilherme Lopes de Campos
 el 8 de Feb. de 2019
  
    
    
    
    
    Comentada: Guilherme Lopes de Campos
 el 12 de Feb. de 2019
            Hi MATLAB community, 
I am trying to execute the follow code, but this only works in the command window and not editor.
Could you help me?
Guilherme Lopes de Campos 
% dados is a matriz 13817 rows and 3 columns
function [matriz_medias] = gerar_medias(dados)
[linha,coluna]=size(dados);
matriz(1:linha,1:4)=zeros;
matriz(1:linha,2:4)=dados;
j=1;
k=1;
ano_ini=matriz(1,3);
for i=k:linha
    if matriz(k,3)==ano_ini
        matriz(k,1)=j;
        k=k+1;
        while matriz(k,3)==ano_ini
            matriz(k,1)=j;
            k=k+1;
        end
        while matriz(k,3)>ano_ini
            matriz(k,1)=j;
            k=k+1;
        end
    end
    j=j+1;
end
matriz_media=zeros(((matriz(linha,3)-matriz(1,3))+1)*12,(matriz(linha,1)+2));
instrumento=1;
ano=matriz(1,3);
mes=1;
for i=1:((matriz(linha,3)-matriz(1,3))+1)*12
    if rem(i,12)~=0
        matriz_media(i,1)=ano;
        matriz_media(i,2)=mes;
        mes=mes+1;
    else
        matriz_media(i,1)=ano;
        matriz_media(i,2)=mes;
        mes=1;
        ano=ano+1;
    end
end
mes=1;
n=0;
j=1;
soma=0;
instrumento=1;
diferenca=0;
for i=1:linha
    if matriz(i,2)==mes
        soma=soma+matriz(i,4);
        n=n+1;
    else
        matriz_media(j,instrumento+2)=soma/n;
        soma=0;
        n=0;
        diferenca=matriz(i,2)-mes;
        if diferenca>1
            for k=1:(diferenca-1)
                j=j+1;
                matriz_media(j,instrumento+2)=999999;
                mes=mes+1;
            end
            diferenca=0;
        end
        soma=matriz(i,4);
        n=1;
        if mes<12
            mes=mes+1;
        else
            mes=1;
        end
        if matriz(i,1)~=instrumento
            instrumento=instrumento+1;
            j=j+1;
        end
    end
end
end
2 comentarios
  OCDER
      
 el 8 de Feb. de 2019
				How are you executing your code in the command window and what do you mean it runs in the editor? Are you getting an error message? If so, copy paste the full error message. 
Respuesta aceptada
  OCDER
      
 el 8 de Feb. de 2019
        Looks like your while loop counter index, k, is going above the row count of matriz. For instance, check these simpler codes out to replicate your error and to fix it. 
matriz = ones(1000, 3);
ano_ini = 1;
k = 1;
j = -1;
while matriz(k,3)==ano_ini %Error: Index exceeds matrix dimensions
    matriz(k,1)=j;
    k=k+1;
end
matriz = ones(1000, 3);
ano_ini = 1;
k = 1;
j = -1;
while matriz(k,3)==ano_ini
    matriz(k,1)=j;
    k=k+1;
    if k > size(matriz, 1); break; end  %break while loop before an error occurs
end
5 comentarios
  Jan
      
      
 el 12 de Feb. de 2019
				Without meaningful comments it is hard to guess, what the code should do.
j       = 1;
k       = 1;
ano_ini = 1;
for i = k:linha
    if matriz(k,3) == ano_ini
        matriz(k,1) = j;
        k           = k+1;
        while matriz(k,3) == ano_ini
          matriz(k, 1) = j;
          k = k + 1;
          if k > size(matriz, 1);
              break;
          end
        end
        while k <= size(matriz, 1) && matriz(k, 3) > ano_ini
        end
    end
    j = j+1;
end
The 2nd while loop is either not entered at all or runs infinetly. So you can simply omit it.
The 1st while loop fills the first column of matriz with ones, but the elements are 1 before also. I have no idea, what the prupose of this code is. I guess, that you do not need a loop at all.
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