function x=bifcuration()
load('yf.txt');
load('bx.txt');

bxx=bx(:,1);
yff=yf(:,1);
plx=length(bxx);
bb=1.04;
be=1.06;
db=0.0005;
bn=floor((be-bb)/db)-1;
tti=1;
 for b=1.04:db:1.06
     bn=floor((b-1.04)/db)+1;
    if bxx(bn)~=0
         niiid=tti:(tti+bxx(bn)-1);
         plot(b,yff(niiid),'b.','markersize',2)
         hold on
      end
    tti=tti+bxx(bn);
 end
return
 老是报错
??? Error using ==> plot
Too many input arguments.

Error in ==> plot at 19
         plot(b,yff(niiid),'b.','markersize',2)
已经弄了一天，高手帮忙看一下