The Most Amount of Rain over a 10 Day Period on Record – Business Intelligence Article

Townsville, Qld, has been inundated with torrential rain and has broken the record of the largest rainfall over a 10 day period. It has been devastating for the farmers and residents of Townsville. I looked at Townsville’s weather data to understand how significant this event was and if there have been comparable events in the past. Data from ‘bomrang’ Where this may interest the R community is in obtaining the data. The package ‘bomrang’ is an API allowing R…

Read More

cdata Control Table Keys | R-bloggers – Business Intelligence Article

In our cdata R package and training materials we emphasize the record-oriented thinking and how to design a transform control table. We now have an additional exciting new feature: control table keys. The user can now control which columns of a cdata control table are the keys, including now using composite keys (that is keys that are spread across more than one column). This is easiest to demonstrate with an example. Consider the simple data frame (the first couple…

Read More

Benchmarking cast in R from long data frame to wide matrix – Business Intelligence Article

In my daily work I often have to transform a long table to a wide matrix so accommodate some function. At some stage in my life I came across the reshape2 package, and I have been with that philosophy ever since – I find it makes data wrangling easy and straight forward. I particularly like the tidyverse philosophy where data should be in a long table, where one row is an observation, and a column a parameter. It just…

Read More

Brandeis and Hugo discuss people of color and under-represented groups in data science. – Business Intelligence Article

Hugo Bowne-Anderson, the host of DataFramed, the DataCamp podcast, recently interviewed Brandeis Marshall, Associate Professor of Computer Science in the Computer and Information Sciences Department at Spelman College. Here is the podcast link. Hugo: Hi there, Brandeis, and welcome to DataFramed. Brandeis: Well, thank you. Wonderful to be here. Hugo: It’s such a pleasure to have you on the show. And I’m really excited to have you here today to discuss the representation and lack thereof in data science…

Read More

recogeo: A new R package to reconcile changing geographies boundaries (and corresponding variables) – Business Intelligence Article

Demographics information is usually reported in relation to precise boundaries: administrative, electoral, statistical, etc. Comparing demographics information reported at different point in time is often problematic because boundaries keep changing. The recogeo package faciliates reconciling boundaries and their data by a spatial analysis of the boundaries of two different periods. In this post, I explain how to install the package, reconcile two spatial objects and check the results. Install the package Let’s first make sure the package is installed…

Read More

Mathematical Notation in Online R/exams – Business Intelligence Article

Many R/exams exercises employ mathematical notation that needs to be converted and rendered suitably for inclusion in online exams. While R/exams attempts to set suitable defaults, an overview is provided of possible adjustments and when these might be useful or even necessary. Overview A popular use case of the R/exams package is the generation of dynamic exercises for online learning management systems in large-scale courses in mathematics, statistics, or physics. Often, these contain some mathematical notation using LaTeX markup.…

Read More

littler 0.3.6: Two neat enhancements – Business Intelligence Article

The seventh release of littler as a CRAN package is now available, following in the now more than twelve-year history as a package started by Jeff in 2006, and joined by me a few weeks later. littler is the first command-line interface for R and predates Rscript. And it is (in my very biased eyes) better as it allows for piping as well shebang scripting via #!, uses command-line arguments more consistently and still starts faster. It also always…

Read More

satRdays Newcastle 2019 Conference is Here! – Business Intelligence Article

We are pleased to announce the very first Satrday event in Newcastle upon Tyne (and England). satRdays Newcastle is a one-day, low-cost, community organised R conference in the heart of Newcastle City Centre. Where? The event will be held at Newcastle University. Getting to Newcastle is really easy Train: 90 minutes from Edinburgh or 3 hours from London. The train station is in the middle of Newcastle. Plane: Direct flights from Schiphol, Paris, Stansted, Heathrow, Dublin, Belfast. The airport…

Read More

more concentration, everywhere | R-bloggers – Business Intelligence Article

Although it may sound like an excessive notion of optimality, one can hope at obtaining an estimator δ of a unidimensional parameter θ that is always closer to θ that any other parameter. In distribution if not almost surely, meaning the cdf of (δ-θ) is steeper than for other estimators enjoying the same cdf at zero (for instance ½ to make them all median-unbiased). When I saw this question on X validated, I thought of the Cauchy location example,…

Read More