Matthijs Hollanders's Avatar

Matthijs Hollanders

@matthollanders

Quantitative ecology, statistics, wildlife, field herping. Post-doctoral Research Fellow @ U of Canberra Consultant @ Quantecol, https://quantecol.com.au Wildlife tour guide @ Australian Wildlife Encounters, https://www.australianwildlifeencounters.com

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18.10.2023
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Latest posts by Matthijs Hollanders @matthollanders

df_add_utms
df_arrange_by_site_and_survey
df_thinned_by_waiting_time

23.02.2026 23:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

they look so bad, but I feel compelled to use base pipe

23.02.2026 23:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

are the bangers in the room with us now?

05.02.2026 20:39 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Lmao

01.02.2026 02:36 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

How much carbon did this thread use?

21.01.2026 04:30 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Does anyone here listen to Professor Jiang? @predictivehistory.bsky.social

21.01.2026 00:45 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Unironically no. Reflect the heat back in.

27.12.2025 23:58 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Shiny side in is for cooking to reflect the heat back to the food. For storage it’s irrelevant.

27.12.2025 23:57 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Same

23.12.2025 00:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

what's the model? why not just random school effects with pooled scales?

18.12.2025 22:19 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Congrats!! Can't wait to read it.

18.12.2025 22:15 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

it feels natural, but log(gamma(1, 1)) puts more prior mass on negative values. which seems countintuitive, but perhaps it isn't as we're dealing with rates.

18.12.2025 21:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Yeah sorry I should've clarified, the idea would be to put a log Gamma prior on the coefficients, i.e.:

intercept ~ gamma(1, 1)
beta ~ gamma(1, 1)
lambda = exp(log(intercept) + log(beta) * x)
y ~ poisson(lambda)

18.12.2025 21:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

O

18.12.2025 01:17 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Ecologists will literally use normal(0, 1000) priors for intercepts in slopes in logistic and Poisson models.

18.12.2025 01:14 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Haven't been here in ages so just gonna take the liberty of tagging @rmcelreath.bsky.social because I think he'd have some good thoughts on this.

18.12.2025 01:13 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

In (Gaussian) linear models, we usually put normal priors for regression coefficients. How do we feel about putting gamma(a, a) priors in something like Poisson regression? Using rates for rates seems nice; the geometric means are still 1, meaning the priors are centered on no multiplicative effects

18.12.2025 01:13 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

logistic(0, 1) is literally uniform on [0, 1].

18.12.2025 01:11 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Just a curious thing to do a week before FOMC especially when cuts were predicted.

18.09.2025 00:05 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

What was your reasoning?

18.09.2025 00:03 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

IG

14.06.2025 03:45 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Make everything the same shade of black and that’s my theme.

10.06.2025 11:48 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Post image

I can’t stand that online journals can’t format equations properly.

29.05.2025 20:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Have you read ai-2027.com?

26.05.2025 11:34 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

How about the rise of Stan tho

19.05.2025 07:09 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

McElreath uses Mac!

19.05.2025 07:08 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
AI 2027 A research-backed AI scenario forecast.

What do people think of this?

ai-2027.com

18.05.2025 07:52 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Is it at least the least of two evils?

17.05.2025 03:31 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Non collapsibility? Time invariance? I know for a fact the latter isn’t a problem with hazard ratios.

15.05.2025 09:45 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

@jordannafa.bsky.social

14.05.2025 22:26 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0