logbook.m

一些用matlab编写的经典遗传算法算例 挺有用的

function logbook(fname,chr,generation)
% LOG - logs to file 
%   log('fname',chr,generation) logs the current population to file
%   named 'fname', chr are the chromosomes, generation is the number
%   of the current generation.
if generation==1
  fid=fopen(fname,'w');
  fprintf(fid,'Total generations: %g\n',generation);
  fseek(fid,1,0);
  csave(fid,chr,generation);
  fclose(fid);
else 
  fid=fopen(fname,'r+');
  fgetl(fid);
  t=fgetl(fid);
  frewind(fid);
  fprintf(fid,'Total generations: %g\n',generation);
  fprintf(fid,strcat(t,'\n'));
  fseek(fid,0,1);
    csave(fid,chr,generation);
  fclose(fid);
end