Have you ever wanted to color points on a scatter plot by some other variable? I do it often, by using the Row Legend command. This way, not only are the points colored, but a legend is added too. As an example, let’s create a scatter plot for which the
I’m sure most of you reading this have encountered the birthday probability problem: Given a group of n people, what is the probability that at least two people have the same birthday? The answer is given by the formula This formula is simplistic because it assumes birthdays are equally spread
In my last blog post, I found the best tasting recipe for the Christmas cookies I want to sell. In this post, I will use JMP's Profiler and Simulator to decide the selling price of the cookies and to investigate profitability. If the price is set too high, then fewer
When I think back to Christmas times of my youth, I recall the cookies my grandmother used to make. They were great! Now she wants to mass-produce the cookies and sell them. Unfortunately, the recipe has been lost. We remember all of the recipe except the “secret sauce” she added
In my last blog post I started the analysis of fictitious survey data concerning what percent of people plan to vote for candidate A in the upcoming presidential election. By fitting the Beta Binomial distribution, I was able to discover that the percent (p) of people varies between cities, and
Among the new features in JMP 8 is the Beta-Binomial distribution. This distribution arrives from assuming x|p ~ Binomial(n,p), and p ~ Beta(a,b). In other words, if you want to simulate a Beta Binomial variate, first randomly select a value of p from the Beta(a,b) distribution, and then use that
With the 2008 Summer Olympics happening in China right now, I am reminded of when I used to run the 200-meter (1/2 lap) and 400-meter (1 lap) events on my high school track team. I wasn’t that good, but I enjoyed it. My best time in the 200m was about