Data Science in the Cloud As more organizations migrate their data science work to the cloud, they naturally want to bring along their favorite data science tools, including RStudio, R, and Python. These organizations are embracing the cloud to achieve...

As 2020 closed, Eveline Geubbels, former COVID-19 Surveillance Coordinator at the Dutch National Institute for Public Health and the Environment (RIVM), faced an important question: How can we help the public health doctors and epidemiologists that wor...

We’re taking a short break from neural networks to return to portfolio optimization. Our last posts in the portfolio series discussed risk-constrained optimization. Before that we examined satisificing vs. mean-variance optimization (MVO). In our last post on that topic, we simulated 1,000 60-month (5-year) return series using the 1987-1991 period ...

How to join this free online event with Arfon Smith, Karthik Ram, Maëlle Salmon and Noam Ross. Software peer-review involves coordinating and tracking many moving parts: software submissions, testing and diagnostics, assignment of editors and reviewers, and logging the progression of submissions through revisions and acceptance. On this call ...

This post presents a R code for a k-fold cross validation of Lasso in the case of a gaussian regression (continuous Y). This work easily can be done by using a mean squared error. Cross Validation in Lasso : Gaussian Regression We have implem...

Yes. Finally, the Voronoi diagrams with the use of x11() function. This diagram is presentation of a plane that is partitioned every time, a user clicks on the canvas of x11. This plane is partitioned into smaller regions that are…Read more ›

A general linear model (GLM) with at least one continuous and one categorical independent variable is known as ANCOVA (treatments). When the effect of treatments is essential and there is an additional continuous variable in the study, ANCOVA is effective.… The post Analysis of Covariance (ANCOVA) using R appeared first ...

You’ve written a great rmarkdown file, and now you want to run it at a set time every day. You’ve tried the Windows Task Scheduler, you’ve pointed it at your markdown file, and you’ve gone off to make some coffee safe in the knowledge that yo...

You’ve written a great rmarkdown file, and now you want to run it at a set time every day. You’ve tried the Windows Task Scheduler, you’ve pointed it at your markdown file, and you’ve gone off to make some coffee safe in the knowledge that your ...

Functionality for working with spot trades is now available in {binance}. In this post we’ll establish some background on spot trading and then explore some of the spot trading functions in {binance}. Setup First we’ll load the package. library(binance) packageVersion("binance") [1] ‘0.0.3’ We’ll be using the Binance ...

A story about nodes and verticesExamples of Weird Whale NFTs. These NFTs (token ids 525, 564, 618, 645, 816, 1109, 1523 and 2968) belong to the creator of the collection Benyamin Ahmed (Benoni) who gave us the permission to show them in this article.By...

What Does Cross-Validation Mean? Cross-validation is a statistical approach for determining how well the results of a statistical investigation generalize to a different data set. Cross-validation is commonly employed in situations where the goa...

Fast and scalable multivariate time series forecasting with ahead::ridge2f.

This post explains more details regarding cross validation of Lasso in the case of a binomial response. We implement a R code for a lasso model's cross validation. In addition, We calculate lambda.min and lambda.1se manually. Finally we compare thes...

Regression in R, In a recent article, we discussed model fitting and selection. However, we haven’t considered how we’ll choose which variables to include in our model. Simple Linear Regression in r » Guide » Let’s go over our ...