Posts Tagged 'PowerPivot'

Windows Azure Marketplace DataMarket

As I prepare to teach Learning Tree’s Power Excel course in Rockville next week I have been taking a closer look at PowerPivot. Since the course now uses Excel 2013 we have expanded the coverage of PowerPivot which is now included with Excel. In 2010 it had been a separate add-in.

So what, you may ask, does that have to do with cloud computing? Well, as it turns out PowerPivot is really well suited to consume data that has been made available in the Windows Azure DataMarket.

The DataMarket is perhaps one of the less well known services offered as part of Windows Azure. In my opinion it has some growing to do before it reaches a critical mass. It has, however, made some impressive advancements since its inception in 2010. The DataMarket contains both free and paid-for data subscriptions that can be accessed using a variety of tools. Here I give a brief example of consuming a free subscription using PowerPivot.

The DataMarket does not appear anywhere on the Azure portal. To access it you need to create a separate account. You do that at https://datamarket.azure.com/ . Once you have established an account you can subscribe to any of the various data that have been published. You can also subscribe and use the data from your browser but I found it very easy and intuitive to subscribe to the data right from within PowerPivot.

Figure 1. Consuming Azure DataMarket data using PowerPivot

I then chose to limit my selection to just the free subscriptions. In an actual application, of course, I would be able to search for data that was relevant to the analysis I was doing. For fun I decided to look at the USA 2011 Car crash data published by BigML. When I finish clicking through the wizard the data is imported into my PowerPivot Data Model and is available for my use. Here I can correlate it with other data I have to build up my analysis dataset.

Once the data is in PowerPivot I can quickly do analyses using familiar Excel tools. I can also use the reporting capabilities of Data View in Excel 2013 to create compelling presentations of the data.

Figure 2. Analysis of Car Crash data in Excel Power View

The easy integration between PowerPivot and the Azure DataMarket gives Excel users a powerful tool to augment their data analysis. In future posts I will explore some of the other services that Microsoft is offering through Azure to further enhance and simplify analysis of very large datasets.

Kevin Kell


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