Eric Watt questions

Eric Watt answers

• Rapidly generating ~ 10^9 steps of a random process in R
• merge list of data frames by different ids
• How to show every second R ggplot2 x-axis label value?
• Divide all rows by a reference row, by group
• Mean on subsets of a subset
• file.create syntax
• Check whether an element in a data frame exists in another data frame
• Bayesian Optimization in r - results