自動選股

這是我的函數庫 目前使用他來判斷做自動交易買賣的均線，然後我想應用在選股

input:thePrice(numericseries); //"價格序列"

input:Length(Numeric);   //"計算期間"

input:multiP(numericsimple); //權重

variable:  Factor(0);

if length + 1 = 0 and multiP=2 then Factor = 1 else if multiP=2 then Factor = 2 / (Length + 1);

if length + 1 = 0 and multiP=1 then Factor = 1 else if multiP=1 then Factor = 1 / Length;

if CurrentBar = 1 then

EMA_m = thePrice

else if CurrentBar <= Length then

    EMA_m = (thePrice + (EMA_m[1]*(CurrentBar-1)))/CurrentBar

else

EMA_m = EMA_m[1] + Factor * (thePrice - EMA_m[1]);

這個是選股條件，為什麼都跑不出來呢? 執行後都無法跑出? 謝謝幫手!

if close >= EmaWeight("D",close, 23, 1) then ret = 1;