Examples with Storage com.tencent.angel.ml.math2.storage.Storage used on opensource projects

Example 76 with Storage

use of com.tencent.angel.ml.math2.storage.Storage in project angel by Tencent.

the class LongLongVector method min.

public long min() {
    LongLongVectorStorage idstorage = (LongLongVectorStorage) storage;
    if (idstorage.size() == 0)
        return 0;
    long minval = Long.MAX_VALUE;
    if (idstorage.isSparse()) {
        LongIterator iter = idstorage.valueIterator();
        while (iter.hasNext()) {
            long val = iter.nextLong();
            if (val < minval) {
                minval = val;
            }
        }
    } else {
        for (long val : idstorage.getValues()) {
            if (val < minval) {
                minval = val;
            }
        }
    }
    return minval;
}

Example 77 with Storage

use of com.tencent.angel.ml.math2.storage.Storage in project angel by Tencent.

the class LongFloatVector method std.

public double std() {
    LongFloatVectorStorage dstorage = (LongFloatVectorStorage) storage;
    if (dstorage.size() == 0)
        return 0;
    double sumval = 0.0;
    double sumval2 = 0.0;
    if (dstorage.isSparse()) {
        FloatIterator iter = dstorage.valueIterator();
        while (iter.hasNext()) {
            double val = iter.nextFloat();
            sumval += val;
            sumval2 += val * val;
        }
    } else {
        for (double val : dstorage.getValues()) {
            sumval += val;
            sumval2 += val * val;
        }
    }
    sumval /= getDim();
    sumval2 /= getDim();
    return Math.sqrt(sumval2 - sumval * sumval);
}

Example 78 with Storage

use of com.tencent.angel.ml.math2.storage.Storage in project angel by Tencent.

the class DoubleVector method sum.

@Override
public double sum() {
    DoubleVectorStorage dstorage = (DoubleVectorStorage) storage;
    double sumval = 0.0;
    if (dstorage.isSparse()) {
        DoubleIterator iter = dstorage.valueIterator();
        while (iter.hasNext()) {
            sumval += iter.nextDouble();
        }
    } else {
        for (double val : dstorage.getValues()) {
            sumval += val;
        }
    }
    return sumval;
}

Example 79 with Storage

use of com.tencent.angel.ml.math2.storage.Storage in project angel by Tencent.

the class DoubleVector method norm.

@Override
public double norm() {
    DoubleVectorStorage dstorage = (DoubleVectorStorage) storage;
    double sumval2 = 0.0;
    if (dstorage.isSparse()) {
        DoubleIterator iter = dstorage.valueIterator();
        while (iter.hasNext()) {
            double val = iter.nextDouble();
            sumval2 += val * val;
        }
    } else {
        for (double val : dstorage.getValues()) {
            sumval2 += val * val;
        }
    }
    return Math.sqrt(sumval2);
}

Example 80 with Storage

use of com.tencent.angel.ml.math2.storage.Storage in project angel by Tencent.

the class IntDoubleVector method std.

public double std() {
    IntDoubleVectorStorage dstorage = (IntDoubleVectorStorage) storage;
    if (dstorage.size() == 0)
        return 0;
    double sumval = 0.0;
    double sumval2 = 0.0;
    if (dstorage.isSparse()) {
        DoubleIterator iter = dstorage.valueIterator();
        while (iter.hasNext()) {
            double val = iter.nextDouble();
            sumval += val;
            sumval2 += val * val;
        }
    } else {
        for (double val : dstorage.getValues()) {
            sumval += val;
            sumval2 += val * val;
        }
    }
    sumval /= getDim();
    sumval2 /= getDim();
    return Math.sqrt(sumval2 - sumval * sumval);
}