Merge pull request #110 from lgreski/master

Added two links: makeCacheMatrix as an Object, and S Objects, R Objec…

Author: seankross

rprog.md

@@ -14,12 +14,15 @@ permalink: /rprog/
 - [PA3-test: `testthat`, Unit Tests for Programming Assignment 3](https://github.com/cbryant1000/pa3test)
 - [Alternative submit script for Programming Assignment 1 that makes submitting more convenient by allowing selection of multiple parts plus prompting if user wants to submit another part before exiting](https://github.com/rchampoux/coursera/blob/master/rprog-scripts-submitscript1.R)
 - [Grading the SHA-1 Hash Code](https://github.com/lgreski/datasciencectacontent/blob/master/markdown/rprog-gradeSHA1hash.md)
+-  [Assignment 2: makeCacheMatrix as an Object](https://github.com/lgreski/datasciencectacontent/blob/master/markdown/rprogAssignment2Prototype.md)
 
 
 ## R Language
 
 - [Some notes on the R Language](http://lopezrj.github.io)
 - [A Data Frame is Also a List](https://github.com/lgreski/datasciencectacontent/blob/master/markdown/dataFrameAsList.md)
+- [S Objects, R Objects, and Lexical Scoping](https://github.com/lgreski/datasciencectacontent/blob/master/markdown/rprog-lexicalScoping.md)
+
 
 ## R language cheatsheet