Blog Feed: Rections on statistics as a catalyst for engineering and scientific discoveries
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Music and Data Visualization (What It's All About)
Published on 2010-12-07 20:19:00
A couple of weeks ago, mashup artist Girl Talk (Gregg Gillis) released his new album, All Day. If you are not familiar with Girl Talk's music, each track is a mashup of samples from different artists. How do you visualize one of these musical mashups > read more
Visualizing Change with Bubble Plots
Published on 2010-11-29 20:29:00
In my last post I showed some of the features of JMP's Bubble Plot platform using the US crime rate data (How to Make Bubble Charts) to create a static bubble plot, and the 1973 to 1999 US crime rate data to generate a dynamic bubble plot. Describing > read more
Visualizing Data with Bubble Plots
Published on 2010-11-23 22:58:00
Bubble plots are a great way of displaying 3 or more variables using a X-Y scatter plot, and are a useful diagnostic tool for detecting outliers and influential observations in both logistic regression (Hosmer and Lemeshow used them in their 1989 boo > read more
Analysis of Means: A Graphical Decision Tool
Published on 2010-10-25 22:06:00
JMP version 9 has been out for about two weeks now, and I hope you had a chance to play with it. If you are not ready to buy it you can give it a try by downloading a 30-day trial copy. Today I want to share with you a new feature in JMP version 9: t > read more
JMP Discovery 2010
Published on 2010-09-21 20:41:00
Last week I attended the JMP Discovery 2010 conference. What a great way to learn about the new features coming up in version 9, to network, to see old friends and make new ones, and to enjoy the many keynote speakers like Dan Ariely who talked about > read more
Tolerance (Coverage) Intervals
Published on 2010-06-28 21:56:00
You are probably familiar with confidence intervals as a way to place bounds, with a given statistical confidence, on the parameters of a distribution. In my post I Am Confident That I Am 95% Confused!, I used the DC resistance data shown below to il > read more
To "Log" or Not to "Log"
Published on 2010-06-21 18:48:00
Many statistical techniques rely upon the assumption that the data follows a normal distribution. In fact, questions surrounding the impact of normality on the validity of a statistical analysis ranks right up there with 'how many samples do I need f > read more
Effective Sample Size
Published on 2010-05-24 21:48:00
It is Monday morning and you are traveling from home to work, a 20 miles journey, when you hit a traffic jam. Things are slow, traffic is doing about 20 mph; you start getting anxious about that meeting they scheduled for 8. After 10 miles of slow tr > read more
Statistics Is the New Grammar
Published on 2010-05-10 21:07:00
That is how Clive Thompson ends his article Do You Speak Statistics? in the May issue of Wired magazine. I like this sentence, it makes you think of statistics in a different way. Grammar has to do with language, with syntax, or "the principles or ru > read more
What If Einstein Had JMP?
Published on 2010-05-03 20:42:00
Last week I had the opportunity to speak at the third Mid-Atlantic JMP Users Group (MAJUG) conference, hosted by the University of Delaware in Newark, Delaware (UDaily). The opening remarks were given by the Dean of the College of Engineering, Michae > read more