30 November 2021 “Is the Google Data Analytics Professional Certificate any good?” Whether you’re a job seeker looking to boost your career or a hiring manager eager to find skilled staff, this is a pertinent question. In this review, I assess the certificate based on the syllabus, and not the … The ...

This tutorial might be for you if, e.g.: You have a lot of customer e-mails, or online-reviews on sales platforms or app stores for your product, etc., and you want to have a statistic based on the content of the texts: How many customers are complaining about a defect ...

One hundred forty-one new packages made it to CRAN in October. Here are my “Top 40” picks in twelve categories: Computational Methods, Data, Genomics, Machine Learning, Medicine, Networks, Science, Social Science, Statistics, Time Series, Utilities, and Visualization. Computational Methods gslnls v1.0.2: Implements an R interface to nonlinear least-squares optimization with the ...

This post gives a brief introduction to the estimation and forecasting of a Vector Autoregressive Model (VAR) model using R . We use vars and tsDyn R package and compare these two estimated coefficients. We also consider VAR in level and VAR in diff...

The current industry protocol for durability testing of vascular stents and frames involves testing many implants simultaneously at a range of different stimulus magnitudes (typically strain or stress). The test levels are spread out like a grid across the stimulus range of interest. Each implant is tested to failure or ...

This is the latest in my series of screencasts demonstrating how to use the tidymodels packages, from just getting started to tuning more complex models. Today’s screencast walks through how to handle workflow objects, with this week’s #TidyTuesday ...

In frozen percolation on a graph, there is a barrier located on each edge. Initially, the barriers are closed and they are assigned i.i.d. uniformly distributed activation times. At its activation time, a barrier opens, provided it is not frozen. At a fixed set \(\Xi\) of freezing times, ...

We use Google workspace as our email and document solution (i.e., the gmail solution for businesses). A few days ago I was chatting with one of my colleagues and noticed this feature called: “Manage webhooks” in the chat window. Apparently it’s a q...

This post is part of a series of technotes about r-universe, a new umbrella project by rOpenSci under which we experiment with various ideas for improving publication and discovery of research software in R. As the project evolves, we will post update...

Principal Component Analysis (PCA) is perhaps the most widespread multivariate technique in biology and it is used to summarise the results of experiments in a wide range of disciplines, from agronomy to botany, from entomology to plant pathology. ...