Dukascopy Support Board • View topic

arco2ch

Hallo Support,

as i am new to Java (MATLAB user), is there a way to extract from a list of Historic bar, all the opens/high/low/close into an array?

        // Re-Assign BAR information
        double[] bOpen = (double[]) inputBars[0].getOpen();

inputBars is coming into the calculate method of a custom indicator. Any hint/help would be greatly appreciated!
If i cannot "cast" then i'll have to "loop-it-out" into an array, which looks unpleasent, but it might be fast as well...

Pietro

API Support

You don't need to cast in this case.
If you use as input type PRICE (https://www.dukascopy.com/client/javadoc ... .Type.html) then you already receive as inputs 4 price arrays and 1 volume array. Consider BullsPowerIndicator as a PRICE usage example (for indicator sources see https://www.dukascopy.com/wiki/#Platform_indicator_source_files)

If using BAR inputs is a necessity then consider the following extraction of values:

double [][] ohlcArray = new double[4][inputBars.length];
for (int i = 0; i < inputBars.length; i++){
    ohlcArray[0][i] = inputBars[i].getOpen();
    ohlcArray[1][i] = inputBars[i].getHigh();
    ohlcArray[2][i] = inputBars[i].getLow();
    ohlcArray[3][i] = inputBars[i].getClose();
}