another optimization to __crand, see issue #188 for details.
another optimization to __crand, see issue #188 for details.


pysal/pysal,hasecbinusr/pysal,lixun910/pysal,TaylorOshan/pysal,darribas/pysal,nathania/pysal,schmidtc/pysal,sjsrey/pysal_core,badjr/pysal,ljwolf/pysal,spreg-git/pysal,ljwolf/pysal_core,pastephens/pysal,schmidtc/pysal,lanselin/pysal,jlaura/pysal,lixun910/pysal,sjsrey/pysal,ljwolf/pysal_core,hasecbinusr/pysal,darribas/pysal,sjsrey/pysal_core,weikang9009/pysal,jlaura/pysal,hasecbinusr/pysal,spreg-git/pysal,sjsrey/pysal_core,chhao91/pysal,TaylorOshan/pysal,TaylorOshan/pysal,dfolch/pysal,ljwolf/pysal,pastephens/pysal,ljwolf/pysal,pedrovma/pysal,jlaura/pysal,chhao91/pysal,lixun910/pysal,ljwolf/pysal_core,nathania/pysal,pastephens/pysal,dfolch/pysal,badjr/pysal