Sven Hohenstein questions

Sven Hohenstein answers

• Generating substrings and random strings in R
• R: subset a data frame based on conditions from another data frame
• In R, sum over all rows above a given row and restarting at new ID?
• Substitute an unevaluated argument into multiple functions
• boxplot won't display with ggvis
• Read odd numbered rows from csv file
• How to add column to data.table with values from list based on regex
• R/ ggplot2/ how to move from connected points in a scatter plot to filled and transparent triangles?
• How to split data in 2 different columns in a qplot() jitter chart?
• Replacing values in one column with another based on a 3rd column matching a 4th