[R] R 3.0.2 How to Split-Apply-Combine using various Columns

2014-01-25 Thread umair durrani
...@outlook.com Date: Fri, 24 Jan 2014 19:45:27 -0800 From: smartpink...@yahoo.com Subject: Re: [R] R 3.0.2 How to Split-Apply-Combine using various Columns To: umairdurr...@outlook.com Hi, Please check your post and see how much helpful is for another person to copy and paste your example dataset

[R] R 3.0.2 How to Split-Apply-Combine using various Columns

2014-01-24 Thread umair durrani
Hello everyone, I have a large vehicle trajectory data of which following is a small part: vehicle frame globalx class velocity