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Indexing issue in _update_cs

Hi, I noticed that in the _update_cs function, the following line appears:

distmat = distmat[:nrowz, (nrowz + 1):(nrowz + k)]

These presumably came from transcribing from the R package 'sparcl.' However, it appears they include an off-by-one indexing error likely because R arrays are 1-indexed. Specifically, (nrowz + 1) should be just nrowz. A simpler fix would be to use scipy's cdist function as in:

distmat = cdist(z,mus)

I hope this helps!

Faill to install

Hi. I got this error when tried to install your package.

running install
running bdist_egg
running egg_info
writing pysparcl.egg-info/PKG-INFO
writing dependency_links to pysparcl.egg-info/dependency_links.txt
writing top-level names to pysparcl.egg-info/top_level.txt
reading manifest file 'pysparcl.egg-info/SOURCES.txt'
writing manifest file 'pysparcl.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
running build_ext
building 'pysparcl.distfun' extension
gcc -pthread -B /home/matheus.viana/anaconda3/envs/qcb/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/home/matheus.viana/anaconda3/envs/qcb/lib/python3.6/site-packages/numpy/core/include -I/home/matheus.viana/anaconda3/envs/qcb/include/python3.6m -c pysparcl/distfun.c -o build/temp.linux-x86_64-3.6/pysparcl/distfun.o
gcc: error: pysparcl/distfun.c: No such file or directory

Any idea on how to fix it?
Thanks,

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