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 Home > Software design
  • ▪ How to create a one-row data.frame (tibble) from 2 vectors. One with the desired column names, and a
  • ▪ Converting lap times from weird format to seconds only
  • ▪ How do I sum up or average daily values in a month?
  • ▪ Why does Gsub not work when converting units?
  • ▪ Adding one value to another within the data frame based on grouping
  • ▪ Problem with `mutate()`...first element used
  • ▪ Last observation for every month for every year, for each firm
  • ▪ get id's of multiple rows in one cell in r data.table
  • ▪ assign and get for dataframe variables in r
  • ▪ Is there a way to generate data in R where the sum of the observations add up to a specific value?
  • ▪ Pie chart of single column in R Language
  • ▪ Construct an index of paired blocks
  • ▪ Plot a mirror histogram in R and deal with NAs
  • ▪ Grouping data based on a condition (containing a specific string)
  • ▪ Using indexing to perform mathematical operations on data frame in r
  • ▪ How to conditionally fill in rows with NAs depending on an evaluation of the first two columns in a
  • ▪ Replace specific pattern (shortening notations) by full notation in R
  • ▪ Remove cases with a specific value in R
  • ▪ How to append text to a column based on conditions?
  • ▪ Create random binary outcome with probabilities conditioned on column values
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