February 2020

Replicating Plots: Oil Pathways

February 7, 2020 | exploRations in R

Intro I was inspired by this graphic on Yahoo Finance. In the TidyTuesday spirit, I set out to recreate it using ggplot2. There were a few things I would have to figure out - how to apply ggtext to an annotation, how to draw a curved arrow, and how to ...
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Three ways to calculate distances in R

February 7, 2020 | Bluecology blog

Three ways to calculate distances in R Calculating a distance on a map sounds straightforward, but it can be confusing how many different ways there are to do this in R. This complexity arises because there are different ways of defining ‘distance?... [Read more...]

Generating correlation matrix for AR(1) model

February 7, 2020 | kjytay

Assume that we are in the time series data setting, where we have data at equally-spaced times which we denote by random variables . The AR(1) model, commonly used in econometrics, assumes that the correlation between and is , where is … Continue reading →
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Bio7 3.1 Released

February 7, 2020 | Marcel Austenfeld

07.02.2020 A new release of Bio7 is available. This update comes with a plethora of new features, improvements and bugfixes. For those who don’t know Bio7. The application Bio7 is an integrated development environment for ecological modeling, scientific image analysis and statistical analysis. It also contains a feature complete development ...
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Visualizing Eliud Kichoge’s new marathon record

February 6, 2020 | R on Amit Levinson

Figure 1: Eliud Kipchoge breaks the two-hour marathon barrier. Photo from the ‘New York Times’. Leonhard Foeger/Reuters Table of Contents Background Retrieving data from wikipedia Warngling the Data Plot ggimage Plot Aesthetics Final annotation Appendix Background On saturday October 12, 2019, Eliud Kipchoge broke (unofficially) the two-hour marathon barrier ? I saw Neil ...
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Visualizing Eliud Kichoge’s new marathon record

February 6, 2020 | R on Amit Levinson

Figure 1: Eliud Kipchoge breaks the two-hour marathon barrier. Photo from the ‘New York Times’. Leonhard Foeger/Reuters Table of Contents Background Retrieving data from wikipedia Warngling the Data Plot ggimage Plot Aesthetics Final annotation Appendix Background On saturday October 12, 2019, Eliud Kipchoge broke (unofficially) the two-hour marathon barrier ? I saw Neil ...
[Read more...]

SHARPEn your portfolio

February 6, 2020 | R on OSM

In our last post, we started building the intuition around constructing a reasonable portfolio to achieve an acceptable return. The hero of our story had built up a small nest egg and then decided to invest it equally across the three major asset classes: stocks, bonds, and real assets. For ...
[Read more...]

Visualizing Eliud Kichoge’s new marathon record

February 6, 2020 | R on Amit Levinson

Figure 1: Eliud Kipchoge breaks the two-hour marathon barrier. Photo from the ‘New York Times’. Leonhard Foeger/Reuters Table of Contents Background Retrieving data from wikipedia Warngling the Data Plot ggimage Plot Aesthetics Final annotation Appendix Background On saturday October 12, 2019, Eliud Kipchoge broke (unofficially) the two-hour marathon barrier ? I saw Neil ...
[Read more...]

Money, market value and competition in modern football

February 6, 2020 | R Bloggers on

In this blog post, I use the market value estimations from the Transfermrkt website to evaluate the influence of money in the top-tier of European football. I trace the evolution of market value for the top 5 European leagues, compute a measure of the market concentration as a proxy for competitiveness ...
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Electricity demand data in tsibble format

February 6, 2020 | R on Rob J Hyndman

The tsibbledata packages contains the vic_elec data set, containing half-hourly electricity demand for the state of Victoria, along with corresponding temperatures from the capital city, Melbourne. These data cover the period 2012-2014. Other similar data sets are also available, and these may be of interest to researchers in the ... [Read more...]

SHARPEn your portfolio

February 6, 2020 | R on OSM

In our last post, we started building the intuition around constructing a reasonable portfolio to achieve an acceptable return. The hero of our story had built up a small nest egg and then decided to invest it equally across the three major asset classes: stocks, bonds, and real assets. For ...
[Read more...]

Comparing Ensembl GTF and cDNA

February 6, 2020 | R on From System to System

It seems that most people think Ensembl’s GTF file and cDNA fasta file mean the same transcripts: Watch out! @ensembl's Fasta and GTF annotation files available via https://t.co/2AhCSnL7py do not match (there are transcripts in the GTF not found in the Fasta file. Anyone else ...
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“Clearing the Confusion” series

February 6, 2020 | matloff

In recent weeks, I’ve posted three tutorials with Clearing the Confusion titles, all in my regtools GitHub repo. Topics have been unbalanced classification data; k-fold cross validation; and scaling in PCA. Comments welcome! [Read more...]
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