Update of summarizeSGP to create "Data" directory to save Summary
Update of summarizeSGP so that it utilizes SCHOOL_NUMBER_INSTRUCTOR
Update of summarizeSGP
Update of outputSGP weighted median to deal with situation where all weights are ZERO
Update of README
Refinement of README.md
Another tweak to README
Another tweak to README
Another tweak to README
Another tweak to README
Another tweak to README
Another tweak to README
Merge pull request #669 from dbetebenner/master

Numerous tweaks to README