acylam questions

acylam answers

• pad missing dates in a dataframe with several columns
• dplyr mutate using character vector of column names
• Using group_by() from dplyr with predict.lm and do() in a pipe for year linear extrapolation
• concatenate quosures and string
• Reshape values from 1 column and attach to existing column name
• Get latest record but if the latest is empty then get the last latest record
• Avoiding writing a long if-else statement in R
• R ggplot2 aes argument
• arrange() doesn't recognize column name parameter
• Combine dimensions of lists of lists into separate vectors