TLDR_MULTINEST.md

Here is a short version, if this fails refer to the full instructions.

First, install the dependencies (for Ubuntu/Linux):

$ sudo apt-get install python-{scipy,numpy,matplotlib,progressbar} ipython libblas{3,-dev} liblapack{3,-dev} libatlas{3-base,-dev} cmake build-essential git gfortran

For Mac, the advice in the instructions are "If you google for “MultiNest Mac OSX” or “PyMultiNest Mac OSX” you will find installation instructions".

The following will place a directory MultiNest in your $HOME directory, if you want to place it somewhere, adjust the instructions as such.

git clone https://github.com/JohannesBuchner/MultiNest $HOME
cd $HOME/MultiNest/build
cmake ..
make

Finally, add the libraries to you path. Add this to the .bashrc file

export LD_LIBRARY_PATH=$HOME/Downloads/MultiNest/lib:

(you'll need to resource your .bashrc after this, i.e. run bash.