JMP Software comes complete with a large number of sample data tables.
The other day I found one containing body measurement data: (more…)
JMP Software comes complete with a large number of sample data tables.
The other day I found one containing body measurement data: (more…)
In my last post I introduced the principles of using the pattern matching functions within JMP. Once you start using pattern matching you will discover that you need to use some additional features, which I discuss here. (more…)
Pattern matching is an incredibly powerful technique for interrogating text strings for the purpose of matching and manipulating string patterns. In this post I will illustrate some of the basic principles of pattern matching. This will be followed by more advanced scenarios. (more…)
Where is the “learning” in machine learning? The problem with machine learning algorithms is that they yield a final solution without giving you a sense of the learning process. So I’ve implemented an interactive version of a perceptron learning algorithm. To run the algorithm I need lenearly separable data – hence the posts from the previous weeks. Now I can use that as the basis for visualising the machine learning steps. (more…)
My last two posts have been talking creating linearly separable data. Hopefully you found some of the features interesting – for example, the idea of creating interactivity using grab handles. But I never really gave a purpose to what I was doing: I wanted to write some machine learning code – specifically a perceptron learning algorithm – and to test the code I needed to create some data on which it could act. (more…)
I have a graph with a line drawn on it. I want to user to be able to change the orientation of the line by “clicking and dragging”. To do this need to implement drag-handles. Here’s how … (more…)
In my last post I outlined some “homework” that I had set myself – to write a script that would create linearly separable data. I want the ability to create it in an interactive environment. (more…)
Don’t worry. The homework is for me, not you. But feel free to have a go yourself also! I want to create a set of data which contains a binary response that is linearly separable within a plane defined by two input variables. (more…)
Here’s the problem. I have a line of code that I want to locate containing the words:
Here’s the problem. I have a list of ‘things’, for example, batch names. I can also get another list, for example, the start dates of the batches. How do I sort the batches by date? The answer: use the Rank Index function. (more…)