- UID
- 2
- 积分
- 2874674
- 威望
- 1387366 布
- 龙e币
- 1487308 刀
- 在线时间
- 13156 小时
- 注册时间
- 2009-12-3
- 最后登录
- 2024-11-24
|
【StdDevS_a】
- Inputs: StdDevArray[size](NumericArrayRef), VArraySize(Numeric);
- Variables: var0(0), var1(0), var2(0);
-
- condition1 = MinList(size, VArraySize) > 0 ;
- If condition1 Then Begin
- var1 = Average_a(StdDevArray, VArraySize);
- var0 = 0;
-
- For value1 = 1 To VArraySize Begin
- var0 = var0 + Square(StdDevArray[value1] - var1);
- End;
- condition1 = var0 > 0 OR VArraySize - 1 > 0 ;
- If condition1 Then
- StdDevS_a = SquareRoot(var0 / (VArraySize - 1));
- End
- Else
- StdDevS_a = -1;
复制代码 |
论坛官方微信、群(期货热点、量化探讨、开户与绑定实盘)
|