CategoriesAdvanced Modeling Tags Data Management Linear Regression R Programming We have previously added a set of company identity-agnostic predictors, such as the number of drivers a company employs, or the number of vehicles in the fleet with a hydraulic lift, and so on. we took this approach, rather than having ...

The latest version of pqR and the version before as well use a new garbage collector, and new memory layouts for R objects, which both reduce memory usage and considerably speed up garbage collection. Here, I’ll give an overview of how the new scheme works, and present some performance ...

From the last post, Vancouver has several common genus in its collection, such as Prunus and Acer. So rather than analyzing the diversity of Vancouver tree species on a species level, we could, with the help of some R packages, visualize the variety of taxonomic groups. First, we format the ...

Discriminant analysis encompasses methods that can be used for both classification and dimensionality reduction. Linear discriminant analysis (LDA) is particularly popular because it is both a classifier and a dimensionality reduction technique. Quadratic discriminant analysis (QDA) is a variant of LDA that allows for non-linear separation of data. Finally, regularized ...

DBnomics : the world’s economic database You can explore all the economic data from different providers by following the link db.nomics.world. You can also retrieve all the economic data through the rdbnomics package here. This blog post describes the different ways to do so. Fetch time series by ...

This is going to be a bit longer than some of my previous tutorials as it covers a walkthrough for sourcing data, scraping tables, cleaning,…Continue ReadingCreate 3D County Maps Using Density as Z-Axis

Hi, internet! DataCamp launches at least one DataCamp project a month that is topical for that specific month, and you (yes, you) should create one for January 2019. For example, in October, we launched a Halloween-related project called Explore 538's Halloween Candy Rankings by Nick Solomon. In that project, DataCamp subscribers ...

CategoriesAdvanced Modeling Tags Data Manipulation Machine Learning R Programming Tips & Tricks We continue on from our previously loaded data of NYC bus delays. Although we are fairly sure that our target variable (time_delayed) is not accurate, it is all we have. We can thank the bus drivers of New ...

I was curious to know what colours were Traditional Colours of Japan. One of the site I came across showing 465 palettes of Japanese colour is this one. Japanese Site with 465 palettes of traditional colour. While site displays colour beautifully, to see every colour you need to scroll quite bit, so ...

In a recent video, I covered Random Forests and Neural Nets as part of the codecentric.ai Bootcamp. In the most recent video, I covered Gradient Boosting and XGBoost. You can find the video on YouTube and the slides on slides.com. Both are again in German with code examples ...

One hundred eighty-five new packages made it to CRAN in October. Here are my picks for the “Top 40” in eight categories: Computational Methods, Data, Machine Learning, Medicine, Science, Statistics, Utilities, and Visualization. Computational Methods compboost v0.1.0: Provides a C++ implementation of component-wise boosting written to obtain high run-time performance and ...

Recalling Le Monde mathematical puzzle  first competition problem Given yay/nay answers to the three following questions about the integer 13≤n≤1300 (i) is the integer n less than 500? (ii) is n a perfect square? (iii) is n a perfect cube?  n cannot be determined, but it is certain that any ...

I’ve been working with the Scottish census recently, to investigate employment in land-based (agriculture, forestry and fishing) industry. A friend of mine has recently moved to Dumfries and Galloway – a rural, farming… Continue reading →