[NumPy-Tickets] [NumPy] #1438: numpy.trapz() doesn't respect subclass

NumPy Trac numpy-tickets@scipy....
Sun Mar 21 23:43:23 CDT 2010

#1438: numpy.trapz() doesn't respect subclass
 Reporter:  rmay    |       Owner:  somebody
     Type:  defect  |      Status:  new     
 Priority:  normal  |   Milestone:  2.0.0   
Component:  Other   |     Version:  devel   
 Keywords:  patch   |  
 numpy.trapz uses asarray() inside the code, which converts arrays that
 were ndarray subclasses. Otherwise, the code can work fine with

 I've attached a patch that fixes this. No test case, because for some
 reason I can't get masked arrays to fail without my fix.  However, this
 does fix the problem for the python-quantities package.

Ticket URL: <http://projects.scipy.org/numpy/ticket/1438>
NumPy <http://projects.scipy.org/numpy>
My example project

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