I'm interested in trying numexpr, but have a question (not sure where's the best forum to ask).
The examples I see use
ne.evaluate ("some string...")
When used within a loop, I would expect the compilation from the string form to add significant overhead. I would have thought a pre-compiled form would be available, similar to a precompiled regexp. yes/no?
On 11/8/12 1:37 PM, Neal Becker wrote:
I'm interested in trying numexpr, but have a question (not sure where's the best forum to ask).
The examples I see use
ne.evaluate ("some string...")
When used within a loop, I would expect the compilation from the string form to add significant overhead. I would have thought a pre-compiled form would be available, similar to a precompiled regexp. yes/no?
numexpr comes with an internal cache for recent expressions, so if ne.evaluate() is in a loop, the compiled expression will be re-used without problems. So you don't have to worry about caching it yourself.
The best forum for discussing numexpr is this:
https://groups.google.com/forum/?fromgroups#!forum/numexpr
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Francesc Alted -
Neal Becker