Posts Tagged ‘ data ’

Mind your Qs

August 20, 2014
By
Mind your Qs

Rescheduling Notice: I have been informed by the organizers that the Meetup tonight has to be rescheduled due to an unexpected problem with the venue. When a new date is set, I will let you know. *** Since I am...

Read more »

David Mimno on "Data Carpentry"

August 19, 2014
By
David Mimno on "Data Carpentry"

There's a post on David Mimno's blog  today titled, "Data Carpentry".I like it a lot, because it emphasises just how much effort, time and creativity can be required in order to get one's data in order before we can get on with the fun stuff ...

Read more »

Davenport on targeted marketing

August 13, 2014
By

Tom Davenport is one of the leading voices on business analytics, and he has a new piece titled "Why are most 'targeted' marketing offers so bad?" in which he expanded on a question I raised in my HBR article. Tom's book Competing on Analytics is a classic. He has a great appreciation for the business of the data business. In the new feature, Davenport classifies marketing offers he gets into…

Read more »

Applied Statistics Lesson of the Day – The Coefficient of Variation

Applied Statistics Lesson of the Day – The Coefficient of Variation

In my statistics classes, I learned to use the variance or the standard deviation to measure the variability or dispersion of a data set.  However, consider the following 2 hypothetical cases: the standard deviation for the incomes of households in Canada is $2,000 the standard deviation for the incomes of the 5 major banks in Canada […]

Read more »

One guaranteed to make Stephen Few cry

August 4, 2014
By
One guaranteed to make Stephen Few cry

Vox published this chart: This sort of chart is, unfortunately, quite common in business circles. Just about the only thing one can read readily from this chart is the overall growth in the plug-in vehicle market (the heights of the...

Read more »

Another day, another misuse of averages

July 30, 2014
By

The other day, we are told that if we walk anywhere in New York, we will bump into a few millionaires (link). This week, we are told that wherever we go in the US, "Roughly, every third person you pass on the street is going to have debt in collections" (link). The woman who said this has a PhD in Economics from Cornell. Oh please. The claim comes from yet…

Read more »

The unkind fate of data graphics in the media

July 28, 2014
By
The unkind fate of data graphics in the media

Journalism suffers from an archiving challenge in the digital age, which I wrote about here. Even worse is the fate of data graphics. This has always been an issue, as digital archives of newspapers do not save any of the graphics. (Try going to the New York Times archive to see for yourself). The new wave of graphing technology is making this problem worse! The new technology embeds charting instructions…

Read more »

General statistical education is an utter failure

July 23, 2014
By

As if we need more evidence. The statistics community loves to think of our subject as highly practical and relevant to the general population. And this is true. The average person has a poor grasp of basic statistical thinking, even if he or she has taken one or more statistics courses. This is true, yet many in our community are in denial. Chapter 1 of Numbers Rule Your World deals…

Read more »

Revisiting the home run data

July 21, 2014
By
Revisiting the home run data

Note to New York metro readers: I'm an invited speaker at NYU's "Art and Science of Brand Storytelling" summer course which starts tomorrow. I will be speaking on Thursday, 12-1 pm. You can still register here. *** The home run...

Read more »

Digital journalism has an archiving challenge

July 18, 2014
By

While making slides for a presentation, I wanted to scan a chart from the paper copy of the Wall Street Journal. This was a chart from several years ago, and I can't find it online. I went to the NYU Library, expecting this to be an easy task. Find the bound copies of the paper, or the microfiche, right? Nope. Apparently, we are in the digital age now. This means…

Read more »


Subscribe

Email:

  Subscribe