Hi David, Sorry it's not working for you, and I apologize for my delay! I've found a few things. The first is that with the current Forthon, I had to make a change to the Makefile, which I've pinged Kacper about. On my system I had to add "-f fKD.f90" to the Forthon command. The second is the add_tree command and a few others seem to have changed in namespace recently. I'm not sure this is a yt thing rather than a Forthon thing. Anyway, you can put this at the top of your script: fKD = fKDpy.fKD and it should get you a long ways there. You'll also need to prefix these function calls with fKD: add_tree create_tree find_many_r_nearest free_tree Here's the script I was able to run to the point of computing things: http://paste.yt-project.org/show/4268/ Although, it took a really long time and I ended up terminating it. I was a bit surprised! -Matt On Wed, Jan 29, 2014 at 10:28 AM, David Sullivan wrote:

Hi all,

I'm trying to compute the two point halo correlation function for RAMSES data using the code found at http://yt-project.org/docs/2.6/analyzing/analysis_modules/two_point_function... (I've already run HOP and written to HopAnalysis.out). I get an error saying 'add_tree' is not defined, but yt.utilities.kdtree is imported and build properly. Is this feature working in version 3.0?

Many thanks, David

P.S Sorry if this gets duplicated as I accidentally tried to send this with an unregistered e-mail

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