[GitHub] [incubator-mxnet] wkcn edited a comment on issue #14361: [numpy] Add a global switch to turn on/off numpy compatibility

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wkcn edited a comment on issue #14361: [numpy] Add a global switch to turn 
on/off numpy compatibility
URL: https://github.com/apache/incubator-mxnet/pull/14361#issuecomment-473616124
 
 
   when set_numpy_comp(True) is called, the output of some reduction operators 
Is always a scalar, which break the construct of computational graph, and not 
benefit for deployment.
   
   I will write an example.
   ```python
   x = mx.nd.arange(6)
   x
   [0. 1. 2. 3. 4. 5.]
   <NDArray 6 @cpu(0)>
   x[1]
   [1.]
   <NDArray 1 @cpu(0)>
   
   # 1-dim NDArray
   mx.nd.sum(x)
   [15.]
   <NDArray 1 @cpu(0)>
   
   # 0-dim NDArray
   mx.numpy.sum(x)
   15.0
   <NDArray 1 @cpu(0)>
   ```

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