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 Home > Software engineering
  • ▪ Shiny tableOutput some rows in scientific notation and others in percent format
  • ▪ How to set maximum and minimum values ​for specific rows and columns with reactiveValues?
  • ▪ Finding months within a column of character values
  • ▪ How to recode values in a columns sequence in R
  • ▪ R: How to filter rows where the start of entries match a list
  • ▪ Duplicate values when using inner_join()
  • ▪ R apply custom function without for loop, expected output is matrix
  • ▪ String replacing UTF special characters like ®, °F in a dataframe
  • ▪ How to create an R function that doesn’t need ‘$’ specified for columns
  • ▪ Make strings uniform -- "AB-CD" === "CD-AB"
  • ▪ Add list-column of tibbles to a tibble based on a list-column of filter quosures without helper func
  • ▪ Convert JSON polygon string to WKT
  • ▪ Multiple-dimensional index on two float columns
  • ▪ Extract the YEAR from a column set as a string with different formates for the dates in SQL
  • ▪ same column names with join, how to select the desired one
  • ▪ What happens if I compare a column with itself and it is NULL?
  • ▪ SQL - Filter Date Range Per Row in Query Result
  • ▪ Aggregate column based on certain conditions?
  • ▪ Merge two tables in SQL
  • ▪ Cannot select unique rows(based on few columns) from a table and having one column computed based on
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