Exercise

• There are multiple ways to encode CSVs.
  • Read in the Fisher dataset using read.csv() then write the data to a separate file using write.csv(). Call the file fisher_rewrite.csv.
  • Read in both fisher_1927_grain.csv and fisher_rewrite.csv using readLines() then compare them.
  • How is data formatted by write.csv():
    • There is an extra column created, what is its column name?
    • What symbol was used to decorate the string values in the data.