Category: teaching

  • Some love for Base R. Part 3

    Some love for Base R. Part 3

    It seems a few people have found useful the reminders of base-R functionality covered in “Some love for Base R” Part 1 and Part 2. So I will keep on mentioning a few bits and pieces that you may find handy when going back to Base or even visiting it for the first time. A […]

  • Flotsam 18: writing

    Flotsam 18: writing

    Adrian Kosmaczewski has an interesting post on How to write a programming book (using ASCIIDOC of all things). And another one on Joplin for notetaking. I feel we are looking for similar things, dealing with a crossplatform environment. I’m walking just a few years behind him.

  • Entrevista: información de fondo

    Entrevista: información de fondo

    El jueves pasado, miércoles en Chile, grabamos una entrevista con Gabriel León. Espero haber dejado claro que era mi opinión personal, en el sentido que no representa una posición institucional, pero también en el sentido de que está informada por 30 años de mi ejercicio profesional. Gabriel me contactó partiendo de ver algunos de mis […]

  • Flotsam 15: inference

    Flotsam 15: inference

    Before I lose the link—as I’m deleting toots & tweets two weeks after I post the—I should save the address for “Introduction to Modern Causal Inference” by Alejandro Schuler and Mark van der Laan. It is a book draft that looks quite readable. Also love Xanthe Tynehorne, Esq.’s Compendium of Curious Words. Weird enough to […]

  • Creating an n x n autocorrelation matrix

    Creating an n x n autocorrelation matrix

    Between covid-19 news and announcements of imminent Russia-Ukraine wars I needed a bit of a distraction. Sooo, here it is how to create an n x n autocorrelation matrix based on a correlation rho, with a simple 5 x 5 example in R: This produces the following output: [,1] [,2] [,3] [,4] [,5] [1,] 1.0000 […]