cm101 2015-10-27 Tuesday overview

HW update:

• HW03 marking concluding. Expect emails soon.
• HW04 marking starting.
• HW05 was the last homework of 545. It is due Wednesday 2015-10-28.

Today:

• Reading data from file, writing (derived) data to file
• Free play
  • Candy survey: pre-article, link to data Google Sheet to be given in class
  • Gapminder data: clean up more? See issue #10 in the package repo