请教Matthrew大师，关于周涨幅的问题

meta2010

请教大师，如何在MetaStock中设置周涨幅排行？ 多谢！

admin

你可以使用 Rate of Change 函式功能寫便可以 !

Rate of Change
SYNTAX roc( DATA ARRAY, PERIODS, DIFF_METHOD )
FUNCTION Calculates the PERIODS rate-of-change of DATA ARRAY expressed as DIFF_METHOD.
Valid DIFF_METHODs are PERCENT and POINTS (these can be abbreviated as % and $).
EXAMPLE The formula "roc( CLOSE, 12, PERCENT )" returns the 12-period percent rate-of-change of the closing prices.


例子:
  
Exploration notes  
  
Col A: +/-ROC ROC( C,1 ,% )
Col B: +/-$ ROC(C,1,$)
Col C: Close C
  
Filter enabled Yes
Periodicity Weekly
Records required 4000

設定:


寫新 explorer 程式:



執行結果:


其它參考例子:
http://www.bp-system.com/discuz/viewthread.php?tid=1421&page=3#pid12619

meta2010

搞掂了，非常感谢！！！