how to solve a error llegal use of reserved keyword "else

In my code i am getting this error llegal use of reserved keyword "else and i am unable to solve it my code inputs image converts it into grayscale and resizes it into 64x64 matrix which is then converted to 8x8 matrix containing the following parameters 0-total damage in the terrain 1-moderate damage in the terrain 2- no damage with these values and the start and the destination values the points in the path are got here is my code. the code is enclosed named matlab text

ccan help me in solving this problem

Answer 1

[the cyclist]

The problem begins in this section of your code:

      % Direction analysis %
      if (end_col < p2)
          if ((M(p1, row) == 2)||(M(p1,row)==1))
              path_row(row_trace) = row;
              path_col(col_trace) = p1;
              found = 1;
          elseif((M(p2, row) == 2)||(M(p2,row)==1))
              path_row(row_trace) = row;
              path_col(col_trace) = p2;
              found = 1;
          elseif((M(p3, row) == 2)||(M(p3,row)==1))
              path_row(row_trace) = row;
              path_col(col_trace) = p3;
              found = 1;
          end
      end
      else

See that else sitting there? It is outside of the logic of the previous if ... end structure.

I can't figure out exactly what your intention was, so I can't see how to fix it.

Answer 2

[Star Strider]

NOTE:

else if(M(p2,row)==0)

From the documentation on if:

• Avoid adding a space after else within the elseif keyword (else if). The space creates a nested if statement that requires its own end keyword.