Hi, I’m new to webpagetest.org, & this is very useful site, & rich of information.
Daily, I submited test on a page (labeled), I manaully create graph on loading speed (x = date, y = second in loading). I copy each result one by one & plot the graph in excel.
Is there any function or method to automate this task.
My label is “infox.la”.
Thank you very much
HKbebe 
There is an API that you can use to automate the submitting of tests and capturing of the results: https://sites.google.com/a/webpagetest.org/docs/advanced-features/webpagetest-restful-apis
There is also an open source monitoring system built on top of webpagetest but it is intended for private installs, not running against the public instance: http://www.wptmonitor.org/
I’m not aware of any tools available that will do both for you automatically, most people have been automating their own scripts. That said, hopefully later this year we will be able to offer something like what you are looking for that can do infrequent (daily) tests to trend results over time.
I’ve been using WPTMonitor for a private install for a while now, and it’s a incredible tool to have in your kit!
Not only do I heartily endorse pretty much anything open source, but it’s easily modifiable and there is a good community supporting it as well
Altneratively, if you have an onsite coder or are willing to outsorce some programming skills, I’m sure it wouldn’t take much to get an adept coder to write something up using the API’s linked by pmeenan!