Analyzing OTC Ingredient Substances
looping through files and extracting the ingredient substances
making a dictionary of the ingredient substances
convert the dictionary to a data frame, and extract the largest 5 values
analyzing 1000 files from the otc archive1 directory
analyzing the first 4000 files from the otc archive1 directory
analyzing all of the ingredient substances of the medicines in the otc archive1 directory
analyzing all of the otc xml files in all ten archive directories [part 1]
analyzing all of the otc xml files in all ten archive directories [part 2]