In statistical ecology, we often need to calculate the sampling variance of a function of an estimate of which we do know the sampling variance. I keep forgetting how to implement the so-called delta method in R that allows to get an approximation of this quantity. So in this post I go through two examples in population ecology that should help me remembering. I use the deltamethod function from the msm package.

I read this awesome post (in French) by Baptiste Coulmont, professor in sociology, who explored the French academic network in sociology. Coulmont used the composition of PhD commitees to determine academic links between colleagues. The approach very appealing because it uses public data available from the website these.fr. Here, I used Coulmont’s R code to produce the French academic network in ecology. This was a nice opportunity to illustrate how to work in the tidyverse and to do some web scraping using the rvest package.

Our team has had a fantastic 2018 year! Inspired by @Maestrelab, below is a thread of some highlights 🍾😜🤩 @CNRS_OccitaniE @INEE_CNRS @umontpellier @IsiteMUSE @LMarescot @NSantostasi @MaudQueroue @ValentinLauret @oksanagrente @GueryLorelei @roques_seb https://t.co/FaP9o0bOD4.

— Olivier Gimenez 💤 (@oaggimenez) 23 décembre 2018

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