Added scripts from class
Added R script.
Added slides and R scripts from class.
Added CART and PSA slides.
Added CART and PSA slides.
Added slides. Updated schedule.
Update
Merge branch 'master' of https://github.com/jbryer/EPSY887DataScience

Conflicts:
	.gitignore
	R/PSA/BootsrappingPSA.R
	R/PSA/IntroPSA-Tutoring.R
	R/PSA/IntroPSA.R
	R/PSA/Sensitivity.R
	Slides/PSA/Slides.Rnw
	Slides/PSA/Slides.pdf
	Slides/PSA/figures/Slides-balanceplot.pdf
	Slides/PSA/figures/Slides-boxdiff.pdf
	Slides/PSA/figures/Slides-boxpsa.pdf
	Slides/PSA/figures/Slides-catpsa.pdf
	Slides/PSA/figures/Slides-circpsa10.pdf
	Slides/PSA/figures/Slides-circpsa5.pdf
	Slides/PSA/figures/Slides-cvbalpsa.pdf
	Slides/PSA/figures/Slides-granovaggds.pdf
	Slides/PSA/figures/Slides-loessplot.pdf
	Slides/PSA/figures/Slides-mlpsadiffplot.pdf
	Slides/PSA/figures/Slides-mlpsaplot.pdf
	Slides/PSA/figures/Slides-mlpsatreeplot.pdf
	Slides/PSA/figures/Slides-popularity.pdf
	Slides/PSA/figures/Slides-triangleplot.pdf
Added example Rnw and Rmd files
Updated Rnw file
Merge pull request #2 from jbryer/master

Merge Jason's Additions