SabDeM questions

SabDeM answers

• How to convert unix timestamp (milliseconds) and timezone in R?
• How to do rowSums over many columns in ``dplyr`` or ``tidyr``?
• Fixing mixed date formats in data frame? [duplicate]
• Create multiple data frames from one based off values with a for loop
• Margin argument within the apply function in R
• YAML current date in rmarkdown
• Handling count of characters with diacritics in R
• What is the difference between a single quote and double quote in Yaml header for r Markdown?
• Dataframe within dataframe?
• What is the functional form of the assignment operator, [<-?