Tag Archive: R

Why tapply should be your new best friend

Ever been faced with a dataset with data spread across a range of categories? Perhaps you had shopper counts per day over a multi-year period and wanted to know what the footfall was… Continue reading

GB potential evapotranspiration dataset

A few weeks ago I wrote about a method to derive incoming solar radiation for different latitudes. This was to help a GIS Masters student who’s looking to derive an equation for propwet… Continue reading

Extraterrestrial radiation dataset

I am currently helping supervise a masters student for their summer project. They’re working on improving a parameter used in flood estimation. The drive for the project is to use the revised parameter… Continue reading

Ordnance Survey Terrain 50 elevation model

UPDATE: Since writing this post I’ve had communication with the Ordnance Survey who have looked into the issues raised. The latest Terrain 50 data available supersedes this post and so I suspect the… Continue reading