I want to thank Bill and everyone that reached out to me individually. It
looks like Bill's solution is the right one, as he was able to replicate
and fix the problem. I am still a bit confused on why this would occur on
some OSs and not others (probably due to different compilers), but I think
the
I see the problem when I compile the C++ code on Ubuntu 20.04 and the
latest R-devel with
C++ compiler: ‘g++ (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
If I change all the unadorned 'abs' calls in src/nn_matchC_vec.cpp with the
prefix 'std::' the problem goes away.
-Bill
On Thu, May 11, 2023 at 11:
Hello,
I'm the mainter of the package *MatchIt*, which uses *Rcpp* to implement
nearest neighbor matching. One way to customize nearest neighbor
matching is to add a caliper, which is the largest distance two units can
be from each other before they are not allowed to be matched. I've had some
use
