Hamming on research

Richard Hamming was an excellent mathematician who worked at the interface of mathematics and computer science. In 1986 he gave a wonderful talk entitled You and Your Research. Derek Smith on the AMS Graduate Student blog reminded me of it today. If yo…

Data visualization videos

Probably everyone has seen Hans Rosling’s famous TED talk by now. If not, here it is:
I recently came across a couple of other exceptional talks on data visualization:
Hans Rosling again: ”Let my dataset change your mindset”. If onl…

Initializing the Holt-Winters method

The Holt-Winters method is a popular and effective approach to forecasting seasonal time series. But different implementations will give different forecasts, depending on how the method is initialized and how the smoothing parameters are selected. In t…

A LaTeX template for a CV

Every researcher needs a Curriculum Vitae (Latin for “course of life”) or CV. You will need it for job applications, for annual performance appraisal, and just for keeping track of your publications. A CV typically contains lists of achieve…

CrossValidated launched!

The CrossValidated Q&A site is now out of beta and the new design and site name is live.

New design The new design looks great, thanks to Jin Yang, our designer-in-residence. Note the normal density icon for accepted answers and the site icon depi…

Getting started with XeLaTeX

By now, most LaTeX users have probably heard of XeLaTeX, if only because it is an option in the latest versions of the standard LaTeX editors such as TeXnicCenter, WinEdt and TeXWorks. But most LaTeXers have probably not yet become XeLaTeXers. Why shou…

How to avoid annoying a referee

It’s not a good idea to annoy the referees of your paper. They make recommendations to the editor about your work and it is best to keep them happy. There is an interesting discussion on stats.stackexchange.com on this subject. This inspired my o…

Happy World Statistics Day!

The United Nations has declared today “World Statistics Day”. I’ve no idea what that means, or why we need a WSD. Perhaps it is because the date is 20.10.2010 (except in North America where it is 10.20.2010). But then, what happens fr…

Do something else

I’ve written about taking a break from research before. Along the same lines, there is some good advice on “The Importance of Making Time for “Real World” Activities in Grad School” over at the excellent AMS Graduate Stude…

Animated plots in R and LaTeX

I like to use animated plots in my talks on functional time series, partly because it is the only way to really see what is going on with changes in the shapes of curves over time, and also because audiences love them! Here is how it is done.
For LaTeX…

Always listen to reviewers

This week I was asked to review a paper that I had seen before. It had been submitted to a journal a few months ago and I had written a detailed report describing some problems with the paper, and noting a large number of typos that needed fixing. That…

Joining an editorial board

Being on the editorial board of a journal is a lot of work. I’m currently Editor-in-Chief of the International Journal of Forecasting and previously I’ve been Theory & Methods Editor of the Australian & New Zealand Journal of Statis…

The ARIMAX model muddle

There is often confusion about how to include covariates in ARIMA models, and the presentation of the subject in various textbooks and in R help files has not helped the confusion. So I thought I’d give my take on the issue. To keep it simple, I …