Package org.apache.commons.math.util.OpenIntToDoubleHashMap

Examples of org.apache.commons.math.util.OpenIntToDoubleHashMap.Iterator.key()

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    public double[] getData() {
        double[] res = new double[virtualSize];
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            res[iter.key()] = iter.value();
        }
        return res;
    }

    /** {@inheritDoc} */
 
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    public double getDistance(OpenMapRealVector v) throws IllegalArgumentException {
        Iterator iter = entries.iterator();
        double res = 0;
        while (iter.hasNext()) {
            iter.advance();
            int key = iter.key();
            double delta;
            delta = iter.value() - v.getEntry(key);
            res += delta * delta;
        }
        iter = v.getEntries().iterator();
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            res += delta * delta;
        }
        iter = v.getEntries().iterator();
        while (iter.hasNext()) {
            iter.advance();
            int key = iter.key();
            if (!entries.containsKey(key)) {
                final double value = iter.value();
                res += value * value;
            }
        }
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    public double getL1Distance(OpenMapRealVector v) {
        double max = 0;
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            double delta = FastMath.abs(iter.value() - v.getEntry(iter.key()));
            max += delta;
        }
        iter = v.getEntries().iterator();
        while (iter.hasNext()) {
            iter.advance();
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            max += delta;
        }
        iter = v.getEntries().iterator();
        while (iter.hasNext()) {
            iter.advance();
            int key = iter.key();
            if (!entries.containsKey(key)) {
                double delta = FastMath.abs(iter.value());
                max +=  FastMath.abs(delta);
            }
        }
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    private double getLInfDistance(OpenMapRealVector v) {
        double max = 0;
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            double delta = FastMath.abs(iter.value() - v.getEntry(iter.key()));
            if (delta > max) {
                max = delta;
            }
        }
        iter = v.getEntries().iterator();
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            }
        }
        iter = v.getEntries().iterator();
        while (iter.hasNext()) {
            iter.advance();
            int key = iter.key();
            if (!entries.containsKey(key)) {
                if (iter.value() > max) {
                    max = iter.value();
                }
            }
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        checkVectorDimensions(v.length);
        RealMatrix res = new OpenMapRealMatrix(virtualSize, virtualSize);
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            int row = iter.key();
            double value = iter.value();
            for (int col = 0; col < virtualSize; col++) {
                res.setEntry(row, col, value * v[col]);
            }
        }
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        checkVectorDimensions(v.getDimension());
        OpenMapRealVector res = copy();
        Iterator iter = v.getEntries().iterator();
        while (iter.hasNext()) {
            iter.advance();
            int key = iter.key();
            if (entries.containsKey(key)) {
                res.setEntry(key, entries.get(key) - iter.value());
            } else {
                res.setEntry(key, -iter.value());
            }
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            throw  MathRuntimeException.createArithmeticException(LocalizedFormats.CANNOT_NORMALIZE_A_ZERO_NORM_VECTOR);
        }
        Iterator iter = entries.iterator();
        while (iter.hasNext()) {
            iter.advance();
            entries.put(iter.key(), iter.value() / norm);
        }

    }

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