So what is data visualization?

- [Instructor] So what is data visualization?…It is data visualized.…No fancy definitions here for me.…But there's lots of things…that go into good data visualizations…but that's not the point of this movie.…The point is to really just show some examples…and try to set some boundaries…for what we're talking about here.…And you'll notice probably…that the boundaries are pretty broad.…I'm not going to constrain it too much.…And you'll also note that this is not an exhaustive list.…So let's start off with the poor lowly bar chart,…right, one of the most basic and common forms.…

It's oft maligned but it's arguably…the best form of data visualization.…If you have one variable to communicate…and the emphasis is on the magnitude of the values…across different categories,…and the goal is probably to allow comparison,…you really can't do much better.…So in this example, we're looking at…a sales performance chart and you could easily see…that 2006 was the best year, 2008 was the worst year,…2009 didn't do so hot either, and then the other years…