I’ve long admired the look of publications generated using the R bookdown package, and thought it would be fun and educational to publish one myself. The problem is that I...continue reading.
A quick riddle from the Riddler, where the multinomial M(n¹,n²,100-n¹-n²) probability of getting three different labels out of three possible ones out of three draws is 20%, inducing a single...continue reading.
Another simple riddle from the Riddler: take a binary sequence and associate to this sequence a score vector made of the numbers of consecutive ones from each position. If the...continue reading.
More notes on using LRT to test time-series data. Thanks for the discussion with Jie. swapping the levels of time factor won’t change the LRT results, as if the time variable...continue reading.
As I was working on a research project with graduate students, I became interested in fast and not necessarily very accurate approximations to the normal cdf Φ and its inverse....continue reading.
A question from X validated on why an independent Metropolis sampler of a three component Normal mixture based on a single Normal proposal was failing to recover the said mixture…...continue reading.
In many scenarios, data are structured in groups or clusters, e.g. pupils within classes (within schools), survey respondents within countries … Read More →continue reading.
A question from X validated on sampling from an unknown density f when given both a sample from the density f restricted to a (known) interval A , f¹ say,...continue reading.
A rather puzzling riddle from The Riddler on an 3×3 directed grid and the probability to get from the North-West to the South-East nodes following the arrows. Puzzling because while...continue reading.
A fascinating question examined in this issue of Science [as pointed out by Nature!] in a paper by Marshall et al. on how many T. Rex(es) roamed the Earth at...continue reading.
This article is originally published at https://xianblog.wordpress.com Thanks for visiting r-craft.org This article is originally published at https://xianblog.wordpress.com Please visit source website for post related comments.continue reading.
In a “Feature” article of 21 January 2021, Nature goes over a poll on “software tools that have had a big impact on the world of science”. Among those, the...continue reading.
In many cases, we need to perform differential expression across the time course data, e.g. finding genes that react in a condition-specific manner over time, compared to a set of...continue reading.
Do you remember the notorious hurricane / himmicane study (Jung et al., PNAS, 2014)? At the time, there was a heavy backlash against the study, and probably rightly so, as...continue reading.
My friends and co-authors from Montpellier have released last month the third version of the DIYABC software, DIYABC-RF, which includes and promotes the use of random forests for parameter inference...continue reading.
The second day of the ABC wwworkshop got a better start than yesterday [for me] as I managed to bike to Dauphine early enough to watch the end of Gael’s...continue reading.
It started a bit awkwardly for me as I ran late, having accidentally switched to UK time the previous evening (despite a record-breaking biking-time to the University!), then the welcome...continue reading.
April marks Mathematics and Statistics awareness month #MathStatMonth in the USA, with the aim of increasing the level of interest… The post Celebrating Mathematics and Statistics month appeared first on...continue reading.
While trying to convey to an OP on X validated why the inversion method was not always the panacea in pseudo-random generation, I took the example of a mixture of...continue reading.
tl;dr: DHARMa tests will pick up on overdispersion before you see a rise of Type I error. Overdispersion is a common problem in GL(M)Ms with fixed dispersion, such as Poisson...continue reading.
GIS / R / R News / Shiny / Visualization
Interactive visualization of geospatial data with R Shiny
April 17, 2021
