nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/linalg/ops/transforms/Transforms.java
public static INDArray abs(INDArray ndArray, boolean dup) {
        return exec(dup ? new Abs(ndArray, ndArray.dup()) : new Abs(ndArray));

    }
public static INDArray abs(INDArray ndArray, boolean dup) {
        return exec(dup ? new Abs(ndArray, ndArray.dup()) : new Abs(ndArray));

    }
public static INDArray abs ( INDArray ndArray , boolean dup ) { return exec ( dup ? new Abs ( ndArray , ndArray . dup ( ) ) : new Abs ( ndArray ) ) ; }
Abs function

@param ndArray
@param dup
@return
Abs function