Company Dropout Documentation: Summary for reference/noting in writeups/presentations:

[ijyliu]

Summary for reference/noting in writeups/presentations:

• We dropped some companies because they were annual or off-schedule (note when discussing earnings calls)
• We dropped some observations where data was clearly cut short and assuming constant rating was bad (note when discussing ratings)
• We dropped some companies with too few (1,2,3 only) quarters (note when discussing ratings)

Originally posted by @ijyliu in https://github.com/current12/Stat-222-Project/issues/29#issuecomment-2080359579