[R] Import multiple files into R

Hi I want to import around 75 files. Each file has a name and a time and is comma separated. For example some of my file names are Asheville_Dec.txt Asheville_Jan.txt Asheville_Feb.txt Charlotte_Dec.txt Chapelhill_Jan.txt The time months are only Dec Jan and Feb. The locations are different. I hav

[R] Is it possible to calculate in r the number of days and count of b in var r from the following table:

0 18-06-2017 4 a 100 0 01-07-2017 5 a 200 0 04-06-2017 grouped by unique ID where the condition = when r = b, sum of s >= sum of s when t = 1? https://stackoverflow.com/q/55724900/11373077 for the discussions Thank you in advance -- C P Ajaykumar [[alternative HTML version dele