My experience and some tips 🔗Last Friday I finally undertook the AWS Solutions Architect Associate exam. It was pretty tough and I’d spent nearly a year in preparation. I thought I’d failed but over the weekend I was pleasantly surprised to find that I’d passed. Why put myself through this? Well our self-taught team had recently carried out a migration of our analytics platform from on premises to AWS. It would have been good to have at least taken the certification training courses beforehand.

I love my iPad. It’s not exactly new: it’s a 12.9 inch model from three years ago. But even so, it’s light and convenient and fast enough not to be painful. What I like about it: easy to write with (I have this keyboard) drawing with a pencil is almost as immediate, with almost the same control, as pen and paper it’s easy on the eyes when it comes to reading the split-screen mode is great for taking notes while reading the games are great – I’m fond of iPad re-imaginings of things like Baldur’s Gate when I’m traveling, I can buy mobile data and it mostly just works I can perform plenty of my engineering and scrum masterly duties with it:

I’ve just realised why my estimates of R do not tally with the established figures, especially after the peak. The reason is an absurdly simple case of user error, for which I can only apologise. The R0 estimate.R function accepts an epidemic curve as its primary data. An epidemic curve is a time series of new cases over time. Unfortunately, I have been using the number of confirmed cases over time.