Does this work for anyone, even if you're not their friend?
Hi, I wrote this blog post.
Nope, you have to be their friend.
Well, you have to be their Facebook friend. What you do in real life is none of my business.
Graphing when your Facebook friends are awake
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Re: Graphing when your Facebook friends are awake
#12Small tip: If you don't want to be tracked, you can also turn off the chat.
Re: Graphing when your Facebook friends are awake
#13What determines whether the app is online? What happens when the user is using the phone but FB is in the background? Does FB get some kind of update when the user is active on device? Or do OP's friend live in the FB app all day long?
Re: Graphing when your Facebook friends are awake
#14Some people might take issue with it, but the writing for this had me in stitches. I very much agree with the author on graphing libraries - there are a few good simple ones, but as soon as you want anything unusual you have to jump to these big, hard to configure monstrosities. More than once I've just given up and written my own server-side generator.
I agree; the writing was excellent. The style might get old after a while, but it captured my feelings on several issues very closely. :)
Re: Graphing when your Facebook friends are awake
#15[deleted]
Re: Graphing when your Facebook friends are awake
#16Some people might take issue with it, but the writing for this had me in stitches. I very much agree with the author on graphing libraries - there are a few good simple ones, but as soon as you want anything unusual you have to jump to these big, hard to configure monstrosities. More than once I've just given up and written my own server-side generator.
+1 The javascript rant is epic! :)
Re: Graphing when your Facebook friends are awake
#17Some people might take issue with it, but the writing for this had me in stitches. I very much agree with the author on graphing libraries - there are a few good simple ones, but as soon as you want anything unusual you have to jump to these big, hard to configure monstrosities. More than once I've just given up and written my own server-side generator.
nvd3 is actually really awesome
http://nvd3.org/
Re: Graphing when your Facebook friends are awake
#18What determines whether the app is online? What happens when the user is using the phone but FB is in the background? Does FB get some kind of update when the user is active on device? Or do OP's friend live in the FB app all day long?
Hi, I wrote this blog post.
I have no idea what the Facebook apps (Messenger and the Facebook app) do in the background.
It's easy to test that, but I didn't because #yoloswag
Re: Graphing when your Facebook friends are awake
#19inb4 facebook resolves this issue by banning anyone who's connected 24/7. (that wouldn't solve the problem either way, btw -- a small group of people could conspire to pull this data at irregular intervals and then share the data with one-another to get a more complete picture while still staying reasonably undetectable if done right.)
Re: Graphing when your Facebook friends are awake
#20>Similarly, I’m not sure why there are these weird spikes every three minutes (+- ~1minute) sometimes.
Could these just be keep-alive requests? For example, the mobile app checks whether it's still connected?