/** For debugging purposes. */
@Override
public String toString() {
if (featureIndex == null) return UNINITIALIZED;
StringWriter sw = new StringWriter();
TabularOutput t = new TabularOutput(sw);
t.flushEvery(Integer.MAX_VALUE);
t.addColumn("#");
t.addColumn("featureIdx");
t.addColumn("=>feature").alignLeft();
t.addColumn("documentIdx").alignLeft();
for (int i = 0; i < featureIndex.length; i++, t.nextRow()) {
t.rowData(
i,
featureIndex[i],
getLabel(i),
documentIndices != null ? documentIndices[i].toString().replace(" ", "") : "");
}
t.flush();
sw.append("\n");
return t.toString();
}
