LABS directory contains:

lab1.pdf, lab1.pptx  - introduction to R, Rstudio, and Swirl.  Includes installation instructions.
Lab2.docx:  summary of Thursdays 1/26 activities.

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R scripts:

Matrices_and_Data_Frames.R  - commands taken from the Swirl course by this name.  
                              comments explain introductory commands useful in data analysis.

uploadDatatoRetc.R  -- commands for reading data into R.
                       also includes  commands taken from the Swirl course 
                       Manipulating data with dplyr - Getting and Cleaning Data.                       
                       NOTE filter commands.

clustering.R - a few scripts involving clustering.

imageclustering.r  - a fun application of clustering.

TDAmapper.r  -  examples modified from https://cran.r-project.org/web/packages/TDAmapper/README.html

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The directory Data contains the following files:

2014-07-08.csv  -  a sample CSV file (probably obtained from a Swirl course)

Book1.csv  -  5 rows 3 columns containing numbers except for one letter e	 
Book1.txt 		 
Book1.xlsx

trefoilknot.txt  -  Points taken from a trefoil knot.  Created using the program KnotPlot.

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Python mapper files:

mappersummary2a.pdf - A quick introduction to Mapper for linux computers in B5 MLH

mappersummary.pdf  similar to mappersummary2a.pdf