Examples with BitmapBackedSelection tech.tablesaw.selection.BitmapBackedSelection used on opensource projects

Example 11 with BitmapBackedSelection

use of tech.tablesaw.selection.BitmapBackedSelection in project symja_android_library by axkr.

the class IntColumn method isNotIn.

public Selection isNotIn(final int... numbers) {
    final Selection results = new BitmapBackedSelection();
    results.addRange(0, size());
    results.andNot(isIn(numbers));
    return results;
}

Example 12 with BitmapBackedSelection

use of tech.tablesaw.selection.BitmapBackedSelection in project symja_android_library by axkr.

the class IntColumn method isIn.

public Selection isIn(final int... numbers) {
    final Selection results = new BitmapBackedSelection();
    final IntRBTreeSet intSet = new IntRBTreeSet(numbers);
    for (int i = 0; i < size(); i++) {
        if (intSet.contains(getInt(i))) {
            results.add(i);
        }
    }
    return results;
}

Example 13 with BitmapBackedSelection

use of tech.tablesaw.selection.BitmapBackedSelection in project symja_android_library by axkr.

the class NumberFilters method isCloseTo.

// TODO(lwhite): see section in Effective Java on double point comparisons.
default Selection isCloseTo(Number target, Number margin) {
    Selection results = new BitmapBackedSelection();
    for (int i = 0; i < size(); i++) {
        double targetValue = target.doubleValue();
        double marginValue = margin.doubleValue();
        double val = getDouble(i);
        if (val > targetValue - marginValue && val < targetValue + marginValue) {
            results.add(i);
        }
    }
    return results;
}

Example 14 with BitmapBackedSelection

use of tech.tablesaw.selection.BitmapBackedSelection in project symja_android_library by axkr.

the class DateFilters method eval.

/**
 * This version operates on predicates that treat the given IntPredicate as operating on a packed
 * local time This is much more efficient that using a LocalTimePredicate, but requires that the
 * developer understand the semantics of packedLocalTimes
 */
default Selection eval(IntPredicate predicate) {
    Selection selection = new BitmapBackedSelection();
    IntIterator iterator = intIterator();
    int idx = 0;
    while (iterator.hasNext()) {
        int next = iterator.nextInt();
        if (predicate.test(next)) {
            selection.add(idx);
        }
        idx++;
    }
    return selection;
}

Example 15 with BitmapBackedSelection

use of tech.tablesaw.selection.BitmapBackedSelection in project symja_android_library by axkr.

the class ByteDictionaryMap method selectIsIn.

@Override
public Selection selectIsIn(String... strings) {
    ByteOpenHashSet keys = new ByteOpenHashSet();
    for (String string : strings) {
        byte key = getKeyForValue(string);
        if (key != DEFAULT_RETURN_VALUE) {
            keys.add(key);
        }
    }
    Selection results = new BitmapBackedSelection();
    for (int i = 0; i < values.size(); i++) {
        if (keys.contains(values.getByte(i))) {
            results.add(i);
        }
    }
    return results;
}