fixed EWprofiles, finished marking

finished up marking essays for nats course today.

attacked EWprofile problem. it seems to be fixed, though not sure how i did it. I simply commented out the forumlae i was using, and re-wrote them. I re-wrote the coding in a different manner. Meaning I split the regions up differently in the ‘if’ statements. As opposed to using a ratio of Rsh/Rg as the boundary, I used absolute Rsh and Rg values. Seem to be having trouble generating an image for theblog, but the profiles are all fixed and included in the draft.