org.nd4j.linalg.util.NDArrayUtil Maven / Gradle / Ivy
package org.nd4j.linalg.util;
import org.nd4j.linalg.api.buffer.DataBuffer;
import org.nd4j.linalg.api.complex.IComplexNDArray;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.factory.Nd4j;
/**
* Created by agibsonccc on 2/26/16.
*/
public class NDArrayUtil {
private NDArrayUtil() {}
public static INDArray toNDArray(int[][] nums) {
if (Nd4j.dataType() == DataBuffer.Type.DOUBLE) {
double[] doubles = ArrayUtil.toDoubles(nums);
INDArray create = Nd4j.create(doubles, new int[] {1, nums.length});
return create;
} else {
float[] doubles = ArrayUtil.toFloats(nums);
INDArray create = Nd4j.create(doubles, new int[] {1, nums.length});
return create;
}
}
public static INDArray toNDArray(int[] nums) {
if (Nd4j.dataType() == DataBuffer.Type.DOUBLE) {
double[] doubles = ArrayUtil.toDoubles(nums);
INDArray create = Nd4j.create(doubles, new int[] {1, nums.length});
return create;
} else {
float[] doubles = ArrayUtil.toFloats(nums);
INDArray create = Nd4j.create(doubles, new int[] {1, nums.length});
return create;
}
}
public static int[] toInts(INDArray n) {
if (n instanceof IComplexNDArray)
throw new IllegalArgumentException("Unable to convert complex array");
n = n.linearView();
int[] ret = new int[n.length()];
for (int i = 0; i < n.length(); i++)
ret[i] = (int) n.getFloat(i);
return ret;
}
}