I think the correct answer is "you don't" (I've done something similiar before, and I remember having to hack a lot).
On Fri, Dec 4, 2009 at 2:10 PM, alrts <[email protected]> wrote: > Hi, > > I made an indicator "priceVolatilityEMA". I took the indicator > "priceEMA" as template and simply replaced > > double price = marketBook.getSnapshot().getPrice(); > > in method calculate() of "priceEMA.java" with > > priceVolatility = new PriceVolatility(beta); > (*) priceVolatility.calculate(); > double priceVolatilityValue = priceVolatility.getValue(); > > in order to build "priceVolatilityEMA.java". However at (*) I'm, > getting a "null pointer exception" as marketBook is suddenly null when > calling "priceVolatility.calculate()". I made something wrong. > > How to corectly call an indicator within an indicator ? > > Thanks for helping! > > -- > > You received this message because you are subscribed to the Google Groups > "JBookTrader" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<jbooktrader%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/jbooktrader?hl=en. > > > -- You received this message because you are subscribed to the Google Groups "JBookTrader" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jbooktrader?hl=en.
