Hi, my apologies if this question is too stupid; I'm trying to find the documentation for an indicator, more precisely an argument, the dot operator gives the definition as:
double linearReg(Instrument param0, Period param1, OfferSide param2, IIndicators$AppliedPrice param3, int param4, int param5) throws com.dukascopy.api.JFException
which is fine and obviously for the first argument the parameter is an instrument type which is self explanatory and so for paramaters 1,2,and 3. So what are paramaters 4 and 5, obviously type int but its a bit hard to work out? Normally you look up in the documentation but I can't find in the wiki manual any info. Am I being blind?

Is there info somewhere else?
Thanks in advance.