Top Answers

1. Convert lists to data frame with NULL values
   4 votes
2. ggplot facet_wrap consistently spaced categorical x axis across all facets
   4 votes
3. Border around bars and caterories, ggplot
   3 votes
4. Read a folder of excel files and import individual sheets as separate df's in R with Names
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5. Cannot subset columns inside a nested data.frame
   2 votes