CONTRIBUTING.md in statsample-2.0.1 vs CONTRIBUTING.md in statsample-2.0.2

@@ -1,29 +1,13 @@
 # Contributing guide
 
 ## Installing statsample development dependencies
 
-If you want to run the full test suite, you will need the latest unreleased nmatrix and gsl-nmatrix ruby gems. They will be released upstream soon but please follow this procdure for now.
+Keep in mind that either nmatrix OR rb-gsl are NOT NECESSARY for using statsample. They are just required for an optional speed up. 
 
-Keep in mind that either nmatrix OR gsl-nmatrix are NOT NECESSARY for using statsample. They are just required for an optional speed up. 
+Statsample also works with [rb-gsl](https://github.com/sciruby/rb-gsl).
 
-Statsample also works with [rb-gsl](https://github.com/blackwinter/rb-gsl), though installing that will cause a problem if you have any nmatrix dependent code because narray and nmatrix have a namespace problem.
-
-To install dependencies, execute the following commands:
-
-  `export CPLUS_INCLUDE_PATH=/usr/include/atlas` 
-  `export C_INCLUDE_PATH=/usr/include/atlas`
-  `sudo apt-get update -qq`
-  `sudo apt-get install -qq libatlas-base-dev`
-  `sudo apt-get --purge remove liblapack-dev liblapack3 liblapack3gf`
-  `sudo apt-get install -y libgsl0-dev r-base r-base-dev`
-  `sudo Rscript -e "install.packages(c('Rserve','irr'),,'http://cran.us.r-project.org')"`
-
-Then execute the .build.sh script to clone and install the latest nmatrix and gsl-nmatrix on your system:
-
-  `./.build.sh`
-
-Then finally install remaining dependencies:
+Install dependencies:
 
   `bundle install`
 
 And run the test suite (should be all green):
 
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