EMA(Close,20); /EMA(Close,10); /EMA(Close,15); 抓出來的值都一樣

請問用EMA(Close,20); /EMA(Close,10); /EMA(Close,15); 抓出來的值都一樣

是不是EMA功能是不能用的

下資料是台泥抓的數據

value1 = EMA(Close,5); 

value2 = EMA(Close,10);

value3 = EMA(Close,15); 

value4 =EMA(Close,20); 

value5 = GetField("Close","D");

if value1 >20

then ret=1;

outputfield(1,value1,2,"ema5");

outputfield(2,value2,2,"ema10");

outputfield(3,value3,2,"ema15");

outputfield(4,value4,2,"ema20");

outputfield(5,value5,2,"收盤價");

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value1 = xf_EMA("D",Close,5); 

value2 = xf_EMA("D",Close,10);

value3 = xf_EMA("D",Close,15); 

value4 = xf_EMA("D",Close,20); 

value5 = GetField("Close","D");

if value1 >20

then ret=1;

outputfield(1,value1,2,"ema5");

outputfield(2,value2,2,"ema10");

outputfield(3,value3,2,"ema15");

outputfield(4,value4,2,"ema20");

outputfield(5,value5,2,"收盤價");

EMA10 EMA15 EMA20值都一樣 51.49 51.49 51.49