IndexError: vector about samplableset HOT 5 CLOSED

note: It happens very rarely and I'm currently trying to find out under which conditions

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This might be related to #15. What are the minimum and maximum weight you are using? It is possible that there are some round-off errors that accumulate in the tree structure. When possible, use the clear method if the set is empty. If the error still happens, we might need to implement some automated check-up on the tree structure to make sure that round-off errors do not cause these runtime errors.

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Yes, I think that's what's happening. I'm usually checking whether or not "total_weight" is zero and sample from the set if this is not the case. However, I'm inserting and deleting like crazy, so I think it happens that small errors accumulate and when the set is empty, the total weight is still 1e-11 or sth like that. In this case, I get the error above.

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In the latest version, there is an empty method that checks the number of elements instead, or size could be used also. These are not susceptible to rounding errors. When you find that the set is empty, use the clear after to remove all remaining rounding errors in the tree. That might help.

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awesome, thanks!

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