Name: Tableau: Using visualizations to truly see your data
Uploaded: 2017-02-03T03:20:56.000Z
Duration: 12 min 28 s
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>> Our next presenter I had the pleasure of meeting during the DSI Hackathon.

She was on the, what ended up being the second-place team, but in my mind, I think,

was the winning team of the presentations.

Namrata Zalewski, and her presentation is entitled, "Tableau,

Using Visualizations to Truly See Your Data".

If you have not used Tableau yet, I thoroughly encourage you to do so.

So please give a warm welcome to Namrata Zalewski.

>> [Laughing] I'm Namrata Zalewski [applause].

And I will talk about using Tableau for data visualization at Indiana University.

A few weeks ago, some of you may remember that I sent out a survey asking Tableau users

at Indiana University what they think of Tableau.

From 25 participants, 99 words and 4 words per participants.

So what I've done with this data, of course, built a Tableau visualization.

This is a snap of a Tableau dashboards on this slide.

And what you're seeing here are the words that were mentioned once.

And I have highlighted some of the words that I thought were very interesting.

So basically the users are saying that Tableau is intuitive.

It is expensive, and it allows you to do analytics.

The words that were mentioned twice basically says that Tableau is fast.

The words that appear three times, since the Tableau users are saying that it's creative.

The words that were mentioned four times -- and I couldn't have defined the Tableau better

than that -- is that Tableau is powerful, professional, and visual.

And the last one that was mentioned the most, is saying that Tableau is interactive.

So I work at Enterprise Business Intelligence Team,

and we are working on a decision support initiative project.

And as a part of this project, we have built a few dashboards.

And you will see -- in the next few minutes, you will see some of these dashboards that are --

that have interactive and drill-down capabilities.

And visually appealing, and informative, and powerful and flexible and so on.

Here is the dashboard that has interactive and drill-down capabilities.

Again, it is the snapshot of the Tableau dashboard and the slide, so it may not be as interactive.

So what you're seeing here on the dashboard is the analysis of credit hours by the students

in your school, versus the students that are coming from other schools.

So on the top circle you can see, there's a filter.

And you can select a school or some other information.

And when you select those filters, in the first graph you see information that's broken

So for example, in 2015 there were 42% of students who were majors

in the selected school, and the 57% non-majors.

And so when you click on any of these academic ears, the below graph will filter the data.

And this -- so in this particular dashboard, you're just see a very high level information

of students that are majors versus non-majors.

And if they're non-majors, which schools they're coming from.

So, you know, and you may want to get a little bit more curious,

and may want to know some more information.

So where are these non-major students -- what is attracting them to come to your school?

Or what are the classes that they're taking, so you can decide for the next term if you want to,

And as soon as you select one school, it opens a few more dashboards -- a few more visualizations.

And so what you're seeing here is 2015, the students, what classes they have taken.

And then you could even go further, because right now you're seeing the number

of classes that students have taken in 2015.

And when you click on any of these classes,

you can drill down further to see a train of these classes.

So how the data is, you know, how the enrollment is looking like for the last few academic years.

So again, so this was a drill-down capabilities.

They kind of provide the users with very high-level information.

And when they get curious, or they want to --

they ask questions, they can drill down to the information that they are looking for.

So now we are going to move to visually appealing and informative dashboards.

So the dashboard that you're seeing here has a bump chart.

And the bump charts are useful for exploring the changes in rank of values over a time dimension.

So in this particular dashboard, a school is selected,

and what you're seeing here are the departments within that school.

And how the enrollment looks like for these schools --

or for these departments in the last few years.

This dashboard is visually appealing, and it's very informative,

because just in a few seconds you can tell exactly how -- you know, how this -- how the department --

how the school looks like in terms of the departments.

The departments that are pretty steady are the departments

that are fluctuating over the period of time.

Now, we're going to move to a more colorful, powerful, and creative dashboard.

So in this particular dashboard, again, it's similar to the first one, major versus non-majors.

You can kind of see that -- so the information that you're looking here, in my --

my students, where they're taking their classes are the --

in my school, you know, where the students are coming from.

And all of the schools are here together.

Right? You cannot probably see the information very clearly at this point, however,

you can select one of the schools, which is one of the colors,

and you can very clearly see the visualization

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