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ND4J: INDArray.get(interval(x,y)) on rank 1 array returns rank 2 array #6347

AlexDBlack opened this Issue Sep 3, 2018 · 2 comments


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AlexDBlack commented Sep 3, 2018

Increasing the rank of the array doesn't make sense for the 1D input case.

    public void testInterval1d(){
        INDArray arr = Nd4j.linspace(1, 10, 10).reshape(10);
        INDArray subset = arr.get(NDArrayIndex.interval(5,10));
        INDArray exp = Nd4j.trueVector(new double[]{6,7,8,9,10});

        assertArrayEquals(new long[]{5}, subset.shape());
        assertEquals(exp, subset);

Note also that the equality is actually passing here too, but I don't think it should - expected has shape [5] but subset has shape [1,5]


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raver119 commented Sep 3, 2018

I think we should just update Nd4j code, and retire old logic of 2D vectors/scalars.

AlexDBlack added a commit that referenced this issue Oct 3, 2018

AlexDBlack added a commit that referenced this issue Oct 4, 2018

More Misc DL4J/ND4J Fixes (#6510)
* #6483 ClassPathResource non-JAR directory fix

* #6362 Add system properties for DL4J and ND4J temporary file locations

* #6347 Fix NDArray.get() on 1d with single interval

* #6276 Make MLN/CG.clearLayerStates() public

* Trigger CI

* Test fixes

* Re-add model guesser method still needed downstream

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This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

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