gistfile1.rb

#
# This is probably a decent interview assignment
#
# Pivot Function
#
# The pivot function takes the unique values of a table column and turns them into
#  columns of a new table, with the values of the new cells being chosen from a column
#  in the original table
#
#  Example:
#
#  hour | source | revenue
#  1    | A      | 100
#  1    | B      | 200
#  2    | A      | 200
#
#  Becomes
#
#  hour | A   | B
#  1    | 100 | 200
#  2    | 200 | nil