Does my new chart make sense?
Oct. 23rd, 2008 04:39 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
Imagine for a moment that it's 2:30 AM London time on November 5th and like me, you've stayed up late to watch the US elections. Six states have been called so far: Vermont and Virginia for Obama, and Indiana, Georgia, South Carolina and Kentucky for McCain. You go to my election page and see this diagram:

Does it make sense to you? How could I improve it?
thanks!
Update: wow, a flood of very helpful comments, thanks so much, keep them coming!
Does it make sense to you? How could I improve it?
thanks!
Update: wow, a flood of very helpful comments, thanks so much, keep them coming!
no subject
Date: 2008-10-23 03:52 pm (UTC)no subject
Date: 2008-10-23 03:54 pm (UTC)no subject
Date: 2008-10-23 03:57 pm (UTC)*twists head*
no subject
Date: 2008-10-23 03:58 pm (UTC)no subject
Date: 2008-10-23 03:58 pm (UTC)no subject
Date: 2008-10-23 03:59 pm (UTC)no subject
Date: 2008-10-23 04:00 pm (UTC)no subject
Date: 2008-10-23 04:02 pm (UTC)no subject
Date: 2008-10-23 04:02 pm (UTC)I was assuming that the distance each one is to either side is the probability they have of falling either way - but that can't be the case (because of Virginia). I also don't understand why some are highlighted - I thought it might be "called" ones, but that also doesn't seem to be the case.
So some explanation would seem to be necessary.
no subject
Date: 2008-10-23 04:03 pm (UTC)The width of each bar appears to be based on that state's number of electoral college votes, which is also the number in parentheses after the state's name.
But then there are three separate things represented on the diagram which look as if they're related to which way the state votes or voted: the colour of the bar (blue or red), the height of the bar (and in particular whether that height is positive or negative), and the position of the state on the x-axis. Clearly all of these are largely correlated but not completely; so clearly they're all representing three correlated but distinct things. But which? Why do some bars have positive height but are red rather than blue? What's the significance of there being a couple of red bars on the mostly-blue side of the diagram?
no subject
Date: 2008-10-23 04:04 pm (UTC)no subject
Date: 2008-10-23 04:06 pm (UTC)no subject
Date: 2008-10-23 04:08 pm (UTC)And what's with the blue/purple colour alternation when there's no such thing for the red?
no subject
Date: 2008-10-23 04:08 pm (UTC)no subject
Date: 2008-10-23 04:09 pm (UTC)What do the %s mean?
What exactly do the three vertical lines represent?
Why is Iowa (red) in the middle of the blue states?
When we are close to the point where one or other side wins, how is that represented visually? Is it going to be obvious at a glance who will win, or is that not the point of it?
Sorry if my questions seem naive to you!
no subject
Date: 2008-10-23 04:10 pm (UTC)no subject
Date: 2008-10-23 04:10 pm (UTC)no subject
Date: 2008-10-23 04:11 pm (UTC)no subject
Date: 2008-10-23 04:15 pm (UTC)A more clear separation - maybe a background colour thing?
no subject
Date: 2008-10-23 04:19 pm (UTC)no subject
Date: 2008-10-23 04:19 pm (UTC)Vertically it falls into three sections - states called for Obama, states not yet called, states called for McCain. The height of the bar shows how much they favour one candidate over the other, either in final results or projected results, and the bars are arranged in height order. Probabilities don't come into it.
Iowa is red because it Bush won it in 2004. Colours alternate just to make the diagram easier to read.
no subject
Date: 2008-10-23 04:20 pm (UTC)no subject
Date: 2008-10-23 04:20 pm (UTC)no subject
Date: 2008-10-23 04:22 pm (UTC)Unfortunately that's only possible if there's room to fit the labels for the called states in the space available for them!
The red colours do also alternate, but maybe it's more subtle.
no subject
Date: 2008-10-23 04:22 pm (UTC)I think I'd separate it into two graphs - "called" and "uncalled" - otherwise there's too much visual information comign across in one place, and it's not at all easy to extract meaning unless you've seen one of these graphs recently (I've seen one before, but not recently).