Subsetting tiny fixes
Opened this issue · 3 comments
carriewright11 commented
- slide 72 say some old stuff about
tb
data which we aren't working with anymore - just needs to be deleted - lab part 3 says 1.3 and 1.4 instead of 3.3, 3.4 etc.
avahoffman commented
In 3.1,
Create a subset called `county_2012` from `county_pop` that only contains the rows for the year 2012 and only the columns: `county_name`, `state_name`, `population`. `year` should not be included in `county_sub`.
I think this should be county_2012
not county_sub
Re-order the rows of `county_2012` by population in increasing order. Use `arrange()`. What is county with the smallest population?
Missing a word
carriewright11 commented
tell them in the slide about errors for filter - remind them how it works- someone got confused - it works on rows based on specified conditions for values across the rows of particular columns
carriewright11 commented
Check fhdsl/DaSEH#81 for overlap