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From: Sebastian H. <ha...@ms...> - 2005-07-06 00:35:05
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Hi, I was very surprised when I got this warning: >>> a = na.arange(4)-2 >>> na.where(a != 0,1./a, 999) Warning: Encountered divide by zero(s) in divide [ -0.5 -1. 999. 1. ] Then I realized that this is generally referred to as (not) "short circuiting" (e.g. in the case of the '?:'-C-operator, the middle part never gets evaluated at all if the first part evals to 0 ) Especially annoying was this because (for debugging) I had set this error-mode: >>> na.Error.setMode(dividebyzero="error") My questions are: a) Did other people encounter this problem ? b) What is the general feeling about this actually being a "problem" ? c) Could this (at all possible) be implemented differently ? Thanks, Sebastian Haase |