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Biased and Inefficient

I’m a statistical researcher in Auckland.

  • By Thomas Lumley
  • Based in New Zealand
  • Roughly one post per month
  • First post on

Posts per month

Data for this chart is available in the table below
Posts per month
Month starting Posts
Jul 2022 4
Aug 2022 1
Sep 2022 2
Oct 2022 1
Nov 2022 2
Dec 2022 3
Jan 2023 1
Feb 2023 3
Mar 2023 4
Apr 2023 1
May 2023 2
Jun 2023 1
Jul 2023 0
Aug 2023 2
Sep 2023 0
Oct 2023 0
Nov 2023 2
Dec 2023 1

Any gaps could be due to errors when fetching the blog’s feed.

Most recent posts

Sparse correlation and the Central Limit Theorem
Back when I was a PhD student working on generalisations of GEE, I was interested in ‘sparse’ correlations, defined by ‘most’ small sets of observations being independent. One way to get this structure is from …
On , 95 words
svy2lme: the preprint
The announcement There’s now a preprint describing the svylme package and svylme::svy2lme function for fitting linear mixed models to complex samples. The models are of the form \[Y =X\beta+Zb+\epsilon\] where \(\mathrm{var}[\epsilon]=\sigma^2\) and \(\mathrm{var}[b]=\sigma^2 V(\nu)\) for …
On , 101 words
Linear mixed models with pairwise likelihood
The most important part of this post library(svylme) It exists! Currently you have to get it from github remotes::install_github("tslumley/svylme") Let’s look at an example. This is data from the New Zealand component of the PISA …
On , 85 words