I looked at that indicators sources posted.
It calculates High - EMA(CLOSE) for bull and LOW - EMA(CLOSE) for bear which is correct.
However, I see the output is named 'MFI down , Volume up' when I plot indicator on chart and in code we have this:

outputParameterInfos = new OutputParameterInfo[] {
            new OutputParameterInfo("MFI Down, Volume Up", OutputParameterInfo.Type.DOUBLE, OutputParameterInfo.DrawingStyle.HISTOGRAM)

But I dont see in indicator's code where MFI and Volume is used. Am I missing something ?

Also, I would like to know if this method in API indicates Bear Power. In JForex Momentum indicators BearPower is short named as BEARP, so I was expected a bearp() method. Similar for bull.

double[] bear(Instrument instrument,
              Period period,
              OfferSide side,
              int timePeriod,
              long from,
              long to)
              throws JFException

Thank you

Also, in this method of a custom indicator:

IndicatorInfo(String name, String title, String groupName, boolean overChart, boolean overVolumes, boolean unstablePeriod, int numberOfInputs, int numberOfOptionalInputs, int numberOfOutputs)

what does it mean 'unstablePeriod' argument and where how is it/should be used ?
the same for 'overVolumes' argument.

Thank you.

Hi,
Methods bear() and bull() refer to Bear Power and Bulls Power indicators.
Output names for these indicators are incorrect, this will be fixed ASAP, thanks for the information.
Have a look at the following JForex Wiki Article: https://www.dukascopy.com/wiki/index.php ... icatorInfo