Peyton questions

Peyton answers

• Return root domain from url in R
• Two interdepending for loops in R, strange results
• Removing html tags from a string in R
• Using backticks in a knitr document
• Accessing environment variables set in R session from shell
• Why does xlim cut off border values of continuous scale?
• When I use stat_summary with line and point geoms I get a double legend
• Reshape package masking preventing melt from naming columns
• How to check if an R environment exists
• knitr single space code when class defaults double space (Rnw)