Matlab - funcion que muestra la secuencia de una matriz de zeros 3x3

function [ cont] = roger( A )

%UNTITLED2 Summary of this function goes here

%   Detailed explanation goes here

cont=0;

[f,c]=size(A);

for i=1:f*c

    if (A(i)==1)

    cont=cont+1;

  i=f;

  j=1;

  di=zeros(1,cont-1);

  for a=1:cont-1

  if i~=1 && (A(i-1,j)== 1)

          D(a)=1;

          in=i-1;

          jn=j;

  elseif j~=c && (A(i-1,j)== 5)

          D(a)=1;

          in=i;

          jn=j+1;

  elseif i~=f && (A(i-1,j)== 3)

          D(a)=1;

          in=i+1;

          jn=j;

  elseif j~=1 && (A(i-1,j)== 4)

          D(a)=1;

          in=i;

          jn=j-1;

  elseif A(i-1,j)==1

            di(a)=1;

            i=0;

            i=i-1;

            j=j;

   elseif A(i+1,j)==1

            di(a)=3;

            i=0;

            i=i+1;

            j=j;

   elseif A(i,j-1)==1

            di(a)=4;

            j=0;

            i=i;

            j=j-1

  else A(i,j+1)==1

            di(a)=5;

            j=0;

            i=i;

            j=j+1;

  end

  end

  end

end