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Quality and Innovation

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  • Text Analysis Tutorial on Spam Email in R

    Hi everyone – I just wrote a tutorial on text analysis in R using the tm and wordcloud packages. It’s my annotated version of one of the exercises in Conway & White’s “Machine Learning for Hackers”, and uses their data sets. I wrote an annotated version because I thought some of my students might benefit from…

  • Normal Probability Plots (QQ Plots) in R

    Here’s a tutorial on how to tell whether your data are (approximately) normally distributed! qq-plot-75-925

  • Blog Shui!

    I’ve officially beautified and 5S-ed my blog today. Enjoy a NEW UPDATED SITE MAP too.  Beautiful pictures courtesy of Doug Buckley at http://interactive.to – as usual. The picture here is one of Doug’s self portraits. If you are equally artistic, you will be able to see him in there.

  • There Is No Process Until It Is Observed

    (Image Credit: Doug Buckley of http://hyperactive.to) I realized today that there’s a little bit of a quantum effect in quality management: There is no process until it is observed. Here’s what I mean. In the August 2012 issue of Quality Progress, Lynne Hare writes about how simple flow charts can be useful diagnostic tools. Just…

  • Bar Charts and Segmented Bar Charts in R

    Here are a couple of tutorials I’ve written to help anyone who’s interested in learning how to produce simple bar charts or simple segmented bar charts in R, given that you have some data stored in a CSV file that you can use. Please leave any comments if there are ways I can make this…

  • Quality Feels Like Being in Love

    (Image credit: Doug Buckley of http://hyperactive.to) I love Paul Borawski’s August discussion topic on ASQ’s View from the Q. Among other questions, he asks: When you’re in a culture of quality, how does it feel? Or, how do you feel? At the moment I’m intrigued by feelings and think more organizations are turning their attention…

  • Stimulating Innovation Culture through Higher Ed Reform (Part II)

    (Image credit: Doug Buckley of http://hyperactive.to) <– this is continued from Part I I have ONE very subjective and utopian proposal for how we could adapt the system of higher education in the US to more effectively achieve these outcomes. The nice thing is, this particular proposal could be implemented by one university at a time.…