Examples with Writable org.datavec.api.writable.Writable used on opensource projects

Example 26 with Writable

use of org.datavec.api.writable.Writable in project deeplearning4j by deeplearning4j.

the class MLLibUtil method pointOf.

/**
     * Returns a labeled point of the writables
     * where the final item is the point and the rest of the items are
     * features
     * @param writables the writables
     * @return the labeled point
     */
public static LabeledPoint pointOf(Collection<Writable> writables) {
    double[] ret = new double[writables.size() - 1];
    int count = 0;
    double target = 0;
    for (Writable w : writables) {
        if (count < writables.size() - 1)
            ret[count++] = Float.parseFloat(w.toString());
        else
            target = Float.parseFloat(w.toString());
    }
    if (target < 0)
        throw new IllegalStateException("Target must be >= 0");
    return new LabeledPoint(target, Vectors.dense(ret));
}