// copied from AlgoInterationList.java
// TODO should it be centralised?
private void setListElement(int index, double value, double exp) {
GeoList listElement;
if (index < outputList.getCacheSize()) {
// use existing list element
listElement = (GeoList) outputList.getCached(index);
listElement.clear();
} else {
// create a new list element
listElement = new GeoList(cons);
listElement.setParentAlgorithm(this);
listElement.setConstructionDefaults();
listElement.setUseVisualDefaults(false);
}
outputList.add(listElement);
GeoNumeric prime = new GeoNumeric(cons);
prime.setValue(value);
GeoNumeric exponent = new GeoNumeric(cons);
exponent.setValue(exp);
listElement.add(prime);
listElement.add(exponent);
}
@Override
public void compute() {
if (!factorList.isDefined() || !Kernel.isInteger(number.getDouble())) {
result.setUndefined();
return;
}
long res = 1;
for (int i = 0; i < factorList.size(); i++) {
GeoList pair = (GeoList) factorList.get(i);
double exp = ((NumberValue) pair.get(1)).getDouble();
if (sum) {
double prime = ((NumberValue) pair.get(0)).getDouble();
App.debug(prime);
res = res * Math.round((Math.pow(prime, exp + 1) - 1) / (prime - 1.0));
} else {
res = res * Math.round(exp + 1);
}
}
result.setValue(res);
}
@Override
public final void compute() {
size = inputList.size();
if (!inputList.isDefined() || !function.toGeoElement().isDefined()) {
r2.setUndefined();
return;
}
GeoFunction funGeo = function.getGeoFunction();
// Calculate errorsum and ssy:
double sumyy = 0.0d;
double sumy = 0.0d;
double syy = 0.0d;
double errorsum = 0.0d;
GeoElement geo = null;
GeoPoint point = null;
double x, y, v;
for (int i = 0; i < size; i++) {
geo = inputList.get(i);
if (geo.isGeoPoint()) {
point = (GeoPoint) geo;
x = point.getX();
y = point.getY();
v = funGeo.evaluate(x);
errorsum += (v - y) * (v - y);
sumy += y;
sumyy += y * y;
} else {
r2.setUndefined();
return;
} // if calculation is possible
} // for all points
syy = sumyy - sumy * sumy / size;
// calculate RSquare
r2.setValue(1 - errorsum / syy);
} // compute()
/** @param x the new value */
public static void setNumericValue(GeoNumeric geo, double x) {
geo.setValue(x);
}
// set parameter of parabola
@Override
public final void compute() {
if (c.type == GeoConicNDConstants.CONIC_PARABOLA) num.setValue(c.p);
else num.setUndefined();
}
