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Recent Posts

  • Time is running out!
  • Tire Pressure Calculator
  • Cool 3D plots
  • Central Limit Theorem
  • Kudos, more is better!

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age Chiller City challange CLT FIT ggimage ggmap ggplot GPX Heatmap JavaScript JS magick Pace plot3D Pressure R Ride Run Sport Statistics Strava Swim time tire tire pressure Tubeless Zwift

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RSS R-bloggers

  • Accessibility in R applications: {shiny}
  • Automating and downloading Google Chrome images with Selenium
  • Subsetting with multiple conditions in R
  • taking advantage of the constant
  • What is Nylas, why did I join and why should you care?

Time is running out!

  • 18 February 202222 February 2022

This is a bit heavy on the mental side. But we all only live for a limited time only (sorry). I tried to visualize the amount of time we have left in our life. This…

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Tire Pressure Calculator

  • 25 March 20217 November 2021

A tire pressure calculator for race and triathlon bikes. Based on the Frank Bertho calculator. I get the impression that the pressure is a bit on the low side but that’s for your own optimization.…

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Cool 3D plots

  • 10 February 20217 November 2021

Some time ago I worked with a supplier who creates excellent cooling equipment for industrial use. Basically an impressive watercooler. The cooling capacity of these devices is depending on the temperature outside and of the…

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Central Limit Theorem

  • 6 February 20216 February 2021
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The Central Limit Theorem (CLT) is an important theory in statistics. It basically says that you can use all statistical tools and methods that assume a normal distribution on a sample of the full population.…

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Kudos, more is better!

  • 31 January 20216 February 2021
  • Leave a Comment on Kudos, more is better!

One in the category of Silly Statistics: Yes, I have finished a run, ride or another sporty activity. Let’s share on Strava and hope that people like it and give me kudos. More is better…

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Running Pace Calculator

  • 30 January 202131 January 2021
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A running pace calculator, everybody needs one.

Riding Watopia

  • 24 January 202110 February 2021
  • Leave a Comment on Riding Watopia

When it’s raining or when it’s just cold outside, I like to ride on Zwift. I especially like Watopia. Let’s see what can be done with the FIT files that are generated. Via the Zwift…

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Run the City Challenge with R

  • 16 January 202113 April 2022

My lovely wife wanted to start a new running challenge: Run all the streets in a city in one year. Interesting of course, but how do you track the streets that you already visited? You…

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Running pace and distance over time

  • 31 December 202026 February 2021

While running for a couple of years now (since 2004) I wanted to see if there is some progress in speed and distance. I didn’t log much in the beginning, no notebook or anything like…

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R Script to retrieve data from Strava

  • 16 December 202013 April 2022

I wanted to have a general and standardized data set on which I base my scripts which try to visualize my sporting activities. This data set should be easy to update, and should be called…

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