plot資料長度卡住

不好意思想請教為什麼畫的圖(附圖)只有到2024.11月開始

input:hpriceg(group,"高價股");

var:_hpsize(0),_hprice(0),i(0);

_hpsize=groupSize(hpriceg);

_hprice=0;

for i =1 to _hpsize begin

_hprice+= getsymbolfield(hpriceg[i],"close");

end;

_hprice=_hprice/_hpsize;

plot1(_hprice,"高價股");