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By Matthias Templ (ZHAW), Thoralf Mildenberger (ZHAW) By way of example, functionality of Reduce() is shown in in https://blog.zhaw.ch/datascience/r-reduce-applys-lesser-known-brother/ . It’s great to learn about how to use this function on interesting problems. If you are ready (equals if you … Continue reading → [Read more...]

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I’m pleased to announce that fiery has been updated to version 1.0 and is now available on CRAN. As the version bump suggests, this is a rather major update to the package, fixing and improving upon the framework based on my experience with it, as... [Read more...]

Last year, Buzzfeed broke the story that US law enforcement agencies were using small aircraft to observe points of interest in US cities, thanks to analysis of public flight-records data. With the data journalism team no doubt realizing that the Flightradar24 data set hosted many more stories of public interest, ... [Read more...]

Atmospheric air pollution is one of the most important environmental concerns in many countries around the world, and it is strongly affected by meteorological conditions. Accordingly, in this set of exercises we use openair package to work and analyze air quality and meteorological data. This packages provides tools to directly ... [Read more...]

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To master data science, you need to practice. This sounds easy enough, but in reality, many people have no idea how to practice. Ultimately, you need to .... The post Simple practice: basic maps with the Tidyverse appeared first on SHARP SIGHT LABS. [Read more...]

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Welcome to the nineth post in the recognisably rancid R randomness series, or R4 for short. Following on the heels of last week's post, we aim to look into the shared libraries created by R. We love the R build process. It is robust, cross-platform, reliable and rather predicatable. It. ... [Read more...]

I have updated the SG-Dashboard with 2Q 2017 numbers. I also took the opportunity to add in a few new tables and charts. There is a new table that keeps track of value-added (VA) revisions of last quarter’s result. VA for certain industries such as c... [Read more...]

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Timo Grossenbacher, data journalist with Swiss Radio and TV in Zurich, had a bit of a surprise when he attempted to recreate the results of one of the R Markdown scripts published by SRF Data to accompany their data journalism story about vested interests of Swiss members of parliament. Upon ... [Read more...]

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@drsimonj here to share my code for using Welch’s t-test to compare group means using summary statistics.  Motivation I’ve just started working with A/B tests that use big data. Where once I’d whimsically run t.test(), now my data won’t fit into memory! I’m ... [Read more...]

When monitoring a data source, model, or other automated process, it’s convienent to have method for easily delivering performance metrics and notifying you whenever something is amiss. One option is to use a dashboard; however, this requires active time and effort to grab numbers and catch errors. An alternative ... [Read more...]