@asafyigal - Thank you for your reply and article. I will check it out.
My pie chart legend shows agent names "mozilla", "nt", "windows", "6.1" "trident". I really want more user friendly browser names and browser versions. I am not sure what browser names and versions correspond with Example Google Chrome vXX.X, Firefox vXX.X, Safari, vXX.X, IE9, IE10. Any idea what I can do to have my legend display more user friendly names like the visualizations that display in the link you provided me?
Here are a couple of lines from my Apache Access Log file. The "agent" field value is the last field value on the line.
Example "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"
75.78.177.126 - cthibodeaux [21/Jun/2015:00:17:32 -0400] "GET /wps/myportal/WestInteractivePortalDemo/site/HostedIVR HTTP/1.1" 302 - "-" "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"
75.78.177.126 - cthibodeaux [21/Jun/2015:00:17:35 -0400] "GET /wps/myportal/WestInteractivePortalDemo/site/HostedIVR HTTP/1.1" 200 81441 "-" "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"