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@bthalpin@mastodon.social
2024-04-16 22:55:06

I keep meeting students who feel they *must* test their variables for normality before analysis.
I tell them there's no need, & if the test tells them it's normal it's only because N is too small.
I decided to run some simulations to check, though, whether e.g., t-tests degraded more for non-normal data & small Ns.
I was a bit surprised by the result: CI coverage degrades for normal vars just as badly as other symmetric dists, but skewed distributions…

Comparison of 95% confidence interval coverage for normal, uniform, logistic, lognormal and Bernouilli distributed variables, for group sizes from 2 to 4096 (two groups of that size, equal population means). Normal does poorly from 2x16 down, other distributions are similar, except lognormal: does a good deal better, counter to expectation. Bernoulli is chaotic.
@vosje62@mastodon.nl
2024-04-17 18:42:55

Estland als voorbeeld om Nederlands onderwijs uit slop te trekken: 'Zelfstandigheid van leraar is hier cruciaal' - #EenVandaag #1v

@toxi@mastodon.thi.ng
2024-03-17 16:04:19

Today's #ReleaseSunday features a major update for the thi.ng/meta-css toolchain, a data-driven codegen for creating custom modular CSS frameworks, incl. transpiler, bundler, dev/watch mode...…

Screenshot of a concise MetaCSS stylesheet snippet, showing the declaration of an oklch() color variable (using the def-oklch() template/function), its use as link color and the creation of a derived/adjusted color for link hover states...

The source code reads:

:root {
  // define an oklch() color variable called "link-color"
  def-oklch(link-color, 80, 100, 0, 1)
}

// use color variable to set text color
a:link, a:visited { color (link-color) }

// use an adiusted version for l…
Transpiled resulting CSS of the MetaCSS declerations in the previous image, showing the expanded variable definitions and calculations to create the derived color...

CSS source code:

:root {
	--link-color-luma: 80%;
	--link-color-chroma: 100%;
	--link-color-hue: 0;
	--link-color-alpha: 1;
	--link-color: oklch(
		var(--link-color-luma)
		var(--link-color-chroma)
		var(--link-color-hue) /
		var(--link-color-alpha)
	);
}

a:link, a:visited {
	color: var(--link-color);
}

a:h…
@NFL@darktundra.xyz
2024-01-18 19:51:34

Chargers interviewing Mike Vrabel for head-coaching job; Falcons, Seahawks also interested: Sources theathletic.com/5212302/2024/0

@heiseonline@social.heise.de
2024-04-18 11:19:00

heise | Kostenlos hochwertige KI-Musik erzeugen: Das leisten Suno und Udio
So erstellen Sie mit Suno oder Udio verblüffend gute KI-Musik, von persönlichen Grüßen bis zu ganzen Partysongs.

@arXiv_csLO_bot@mastoxiv.page
2024-04-17 07:21:59

One is all you need: Second-order Unification without First-order Variables
David M. Cerna, Julian Parsert
arxiv.org/abs/2404.10616

@villavelius@mastodon.online
2024-03-17 18:08:52

"Een gevaarlijke gek" lijkt me de juiste omschrijving,
theguardian.com/us-news/2024/m

@NFL@darktundra.xyz
2024-01-18 20:10:36

Former Titans HC Mike Vrabel to interview with Chargers for head coach opening nfl.com/news/former-titans-hc-

@heiseonline@social.heise.de
2024-02-17 08:11:48

#Verpasstodon
Unter Applaus: Menschenmenge in San Francisco zerstört Robotaxi von Waymo
Dass die autonomen Taxis von Waymo in San Francisco nicht nur Freunde haben, war bekannt. Ein Vorfall vom Wochenende hat aber eine ganz neue Qualität.

@heiseonline@social.heise.de
2024-02-17 08:11:48

#Verpasstodon
Unter Applaus: Menschenmenge in San Francisco zerstört Robotaxi von Waymo
Dass die autonomen Taxis von Waymo in San Francisco nicht nur Freunde haben, war bekannt. Ein Vorfall vom Wochenende hat aber eine ganz neue Qualität.