public FitDataIterator(ITuple tuple) {
this.tuple = tuple;
tuple.start();
tuple.next();
valCol = tuple.findColumn("value");
errCol = tuple.findColumn("error");
errMinusCol = tuple.findColumn("minusError");
nVars = tuple.columns() - 3;
vars = new double[nVars];
}
public double[] vars() {
for (int i = 0; i < nVars; i++) vars[i] = tuple.getDouble(3 + i);
return vars;
}
public double minusError() {
if (errMinusCol != -1) return tuple.getDouble(errMinusCol);
return error();
}
public double error() {
if (errCol != -1) return tuple.getDouble(errCol);
return Double.NaN;
}
public double value() {
if (valCol != -1) return tuple.getDouble(valCol);
return Double.NaN;
}
public void start() {
tuple.start();
}
public boolean next() {
return tuple.next();
}
public int entries() {
return tuple.rows();
}