Krista Fischer

17 October: Conference “150 Years of Data Visualisation in Tartu: A Tribute to Wilhelm Lexis” The conference on 17 October marks the 150th anniversary of the publication of a landmark work in statistics, demography, and data visualisation.

The Lexis conference is already tomorrow (also a Zoom option available). math.ut.ee/en/WLconfere...

Autokool on kasulik asi kindlasti, aga niigi tihedasse gümnaasiumiprogrammi lisades tuleks ta ju millegi muu arvelt. Mida me siis vähemaks võtame - matemaatikat, eesti keelt, ajalugu? Las see jääda ikkagi vaba aja ettevõtmiseks, gümnaasiumi ajal või ka pärast seda.

Seevastu Keskerakonna Tartu programmis on, et autokool võiks olla osa gümnaasiumiorogrammist…Huvitav kas nad noortelt ka küsisid?

17 October: Conference “150 Years of Data Visualisation in Tartu: A Tribute to Wilhelm Lexis” The conference on 17 October marks the 150th anniversary of the publication of a landmark work in statistics, demography, and data visualisation.

Do you know that Wilhelm Lexis published his "Introduction to the Theory of Population Statistics", containing the famous Lexis diagram, 150 years ago, while working at Tartu University? We are organizing a small conference to celebrate: math.ut.ee/en/WLconfere...

"The ideal subject of totalitarian rule is not the convinced Nazi or the dedicated communist, but people for whom the distinction between fact and fiction, true and false, no longer exists." - Hannah Arendt

Oxfordi teadlaste arvutatud meetmete indeksi järgi olid suurem osa ajast (v.a 2020 märts-aprill) Eesti meetmed Rootsi omadest leebemad.

Hint: what would you conclude if you leave out the yellow group? Or keep just the blue group of cities?

A graph used by our minister of finance to support his claim that expensive food prices are caused (!) by too much retail space (Tallinn). I will use that example in my statistics classes on causal inference.

Tartus pool tundi :)

Alumise graafiku punase ja rohelise joone võrdlus ei päde, sest punasel on päevased maksimumid, rohelisel päevaste maksimumide mediaan pika aja jooksul. Punase joone võiks siis ka juba asendada 2003-2023 päevaste maksimumide mediaaniga. (Punase joone võrdlus halli ribaga on aga pädev küll. )

In 1875, when his book with Lexis diagram was published (Introduction to the Theory of Population Statistics) he worked at the University of Dorpat, that is now Tartu University, Estonia - that was 150 years ago!

Diagram showing the idea behind the lexis diagram. A grid of Age by Year showing diagonals of Cohort

Schematic diagram of a Lexis Diagram. Y axis is Age, X is calendar year. A blue diagonal gives the cohort of people born in a given year over time.

Photo of Wilhelm Lexis

#TodayinHistory #dataviz #Onthisday #OTD 📊
🎂Jul 17, 1837 Wilhelm Lexis born in Eschweilier, Germany 🇩🇪

1875: The Lexis diagram, showing relations among age (cohort), calendar time, and life spans of individuals simultaneously. Makes ALL key demographics visible

Ainuke kord kui laulupeo ajal päike päriselt välja tuli korraks, oli ühe kõige religioossema laulu ajal (“Oh Aadam sino essitus”). Usklik inimene võiks hoopis selles mingit märki näha. Aga noh, deemonid ja põrgu on ju põnevamad.

Ja mis point on valimistel, kus valime oma huve esindavad poliitikud, kes aga ei hakka ise juhtima, vaid määravad apoliitilise valitsuse?

Ma loen parasjagu Läti kirjaniku raamatut (A. Akmentinš, “Õpetajad”, soovitan), kust sain teada, et lätlaste tavaline vana lehma nimi (no nagu Punik) on Perse.

Teine asi, magistritöö maht on olenevalt erialast 15-30 EAP. 1 EAP=26 töötundi ligikaudu. Kahe nädalaga valmis tehtud töö ei vasta sellele kuidagi.

Magistritöö on magistriÕPPE oluline osa. Mida õppis ehk milliseid uusi erialateadmisi ja eriala praktilise rakendamise oskusi sai see konkreetne magistrant sellise töö tegemise käigus?

A set of three wall shelf sets, in the form of boxplots

📊Looking to re-decorate your #dataviz office? Y
ou need Boxplot Shelves!

Oh

time.com/7295195/ai-c...

Elumuutvad tõenäosusteooriad | Universitas Tartuensis

Eestikeelset põnevat lugemist tõenäosusteooriast kolleeg Jüri Lemberi sulest: ajakiri.ut.ee/elumuutvad-t... Elumuutvad tõenäosusteooriad | Universitas Tartuensis

appi mida ma just lugesin

Ma sõidan iga parv tööle läbi Raadi surnuaia Tartus. Tean et rikun seadust.

Thanks to everybody who chimed in!

I arrived at the conclusion that (1) there's a lot of interesting stuff about interactions and (2) the figure I was looking for does not exist.

So, I made it myself! Here's a simple illustration of how to control for confounding in interactions:>

Miks ainult 9-kohalist vaja? Vanematel lastel (nt see 22a) nagunii juba elukaaslased ja nemad ka peavad mahtuma. Ja varsti ka nende lapsed.

just saw this post: he is a very well-known author and instructor in data visualization and even his students prefer LLM to learning.

Barbe

Ene-Margit Tiit oma tuntud headuses. www.err.ee/1609678676/e...

Six not-so-basic base R functions – %>% dreams There are so many goodies in base R. Let’s explore some functions you may not know.

Learned today: Base R's lengths() function gives you the length of every item in a list, e.g. lengths(my_list)
Via @ivelasq3.bsky.social
ivelasq.rbind.io/blog/not-so-...

#RStats #R

Why electric bikes actually give more exercise than pedal bikes Believe it or not, electric bikes offer more exercise than pedal bikes on average. That fact might sound strange (and...

“Believe it or not, electric bikes offer more exercise than pedal bikes on average. That fact might sound strange, but the science is clear.”

Why e-bikes can actually give more exercise than “acoustic” bikes. But no need to debate — both are brilliant in many ways when it comes to better cities.