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Latest Tips & Tutorials

How to generate all combinations from two separate lists [Pivot Table Trick]

Time for a quick but very useful tip. Ever wanted to create all combinations from two (or more) lists? a la Cartesian product of both lists.

Here is a ridiculously simple way to do it.

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October 4, 2016

A quick tip about data analysis while on bike [Video + Personal]

Wellington(NZ) sure is beautiful on a clear day. There are so many cool bike tracks, walking trails and beaches to keep you busy. Today, I went cycling on my usual route towards Makara beach. At the turn off point, I thought, “This is selfish. I can’t keep all this beauty to myself. I must share it with you.” So here we go.

A quick video about data analysis while on bike

Technically, I was not on bike when recording this video. Watch it below or on our YouTube Channel.

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October 3, 2016

Check if a range has all numbers from 1 to n [Homework]

Finally, spring weather showed up in Wellington this week. We cashed it as much as possible by going on treks, cycling trips, more treks and of course doing laundry.

Anyways, I don’t have time to blog. I must go out and help kids with some cycling. But I want to keep you busy this weekend. So here is a fun homework problem.

Does my range have all numbers from 1 to n?

Let’s say you have a range called range (duh!). And you want to check if range has all the numbers 1 to n (say n=5) in it, each number appearing only once (no more, no less). You can assume the named ranges range and n in your formulas.

See above examples to understand the problem.

So go ahead and post your formulas in the comments section. I will sneak in whenever I can to look at all your creative answers.

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September 30, 2016

Mapping Spread of Obesity [Chart Critique and Alternatives]

Over at Flowing Data, Nathan has published an interesting visualization about spread of obesity.

While the above chart is quite interesting, it doesn’t offer much insight in to the data. There are a few drawbacks,

Understanding obesity trends for a given state over the years is hard due to the layout and format of the chart.
Finding which states are experiencing most obesity growth rates is not possible
Ironically, the chart itself is obese. It takes too much space to explain the data.

Nevertheless, the chart looks cool and can be reused with smaller data-sets (quarterly trends or just for a few years). So let’s recreate the same in Excel. While we are at it, let’s also build an alternative visualization to explore the obesity data.

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September 28, 2016

Visualizing Financial Metrics – Contest Winners

Its party time! A while ago, we ran a contest asking you to visualize financial metrics data. We got 30 awesome entries. Today let’s reward the winners.

But first a quick note: Congratulations to all the entrants. I have learned a lot just by playing with your files and exploring them. Thank you so much for taking time to share your knowledge with all of us.

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September 23, 2016

Visualizing target vs. actual progress – Biker on a hill chart

Over the years, we have discussed a whole heap of techniques to visualize budget vs. actual charts. Today let’s take a ride on this slope again and learn another fun, silly & awesome way to depict target vs. actual progress.

Introducing biker on a hill chart

Tada!!!

Biker on a hill!?! Don’t worry, I didn’t fall down on a descent and lose my brain. I am talking about an Excel chart to visualize target vs. actual progress on a time line with biker on a hill analogy. See the above chart, you will know.

Looks interesting? Read on to learn how to create this in Excel.

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September 20, 2016