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Tag Archives: R
A Very Short Introduction to Time Series
Last week, I gave a presentation on the basics of time series statistics to an informal group of students in biology, forestry, and fisheries who meet every week to share tips and talk over problems involving statistics and R. A … Continue reading
DIY Scale Dependence
What’s the big deal about “scale?” It’s a word that I’ve written about before here, and one that certain types of ecologists can’t seem to stop talking about. But it can be an infuratingly vague word to pin down, given … Continue reading
Queensland Rain: Quick ‘n’ Dirty Climatology
My last post, on the connection between the equatorial Pacific Ocean and the floods in Eastern Australia, closed with a graph of the Southern Oscillation Index (SOI) over the past 40 years, and with an assertion that major rains and … Continue reading
Posted in Quantitative
Tagged Brisbane, climate, climatology, flooding, graphs, Queensland, R, rainfall, SOI, statistics
5 Comments
Fractal Landscapes in R: Part Two
My last post showed how, with some simple R code, it is possible to generate a surprisingly realistic mountainous profile, as if seen on the horizon. This was done by taking a two points, calculating their midpoint, offsetting it by … Continue reading
Posted in Uncategorized
Tagged diamond-square algorithm, fractals, landscapes, mountains, R
2 Comments
Fractal Landscapes in R
The past few days I’ve gone on a bit of a fractals kick. It’s partly been motivated by the recent passing of Benoit Mandelbrot, the iconoclastic mathematical genius who coined the term “fractal” and profoundly shook up a number of … Continue reading
Posted in Uncategorized
Tagged Benoit Mandelbrot, fractals, landscapes, mountains, R, recursion
3 Comments
The Joy of Fortran
Well, maybe “joy” is a strong word. But over the past couple of days, I’ve been programming in Fortran a bit for the first time in about two years. Fortran, for the uninitiated, is the oldest programming language still in … Continue reading
Posted in Uncategorized
Tagged computers, Fortran, programming, Python, R, SciPy, semivariogram
1 Comment