Weighted median (fast MEX)

calculating the weighted median or weighted median + weighted std using a fast MEX functions.

Fast MEX functions for calculating the weighted median of an array over some dimension.

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These functions are part of AstroPack/MAATv2:

https://github.com/EranOfek/AstroPack

For updates and revision download AstroPack.

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Credit: Eran Ofek

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Compilied fort linux.

Compilation:

mex -O -R2018a CXXFLAGS="\$CXXFLAGS -fopenmp -O3 -march=native" LDFLAGS="\$LDFLAGS -fopenmp" wmedian_mex.cpp

mex -O -R2018a CXXFLAGS="\$CXXFLAGS -fopenmp -O3 -march=native" LDFLAGS="\$LDFLAGS -fopenmp" wmedianStd_mex.cpp

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Examples (see help files):

[M]=tools.math.stat.mex.wmedian_mex(R,W)

[M]=tools.math.stat.mex.wmedian_mex(R,W,2)

[M,S]=tools.math.stat.mex.wmedianStd_mex(R,W)

[M,S]=tools.math.stat.mex.wmedianStd_mex(R,W,1)