Dan Oehm | Gradient Descending

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Category: Data Science

Data Science R

Alone R package: Datasets from the survival TV series

January 20, 2023 Daniel Oehm 0 Comments

I have been watching the survival TV series ‘Alone,’ where 10 survivalists are dropped in an extremely remote area and […]

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Data Science R

Select colours from an image in R with {eyedroppeR}

December 6, 2022 Daniel Oehm 0 Comments

There are fancy ways to extract colours from images but sometimes it’s easier if you could simply click on the […]

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Hex sticker for the cropcircles R package Data Science R

How to crop an image to a circle in R with {cropcircles}

September 11, 2022 Daniel Oehm 0 Comments

I hadn’t found a super-easy-you-don’t-have-to-think-about-it way to crop an image to a circle in R with a transparent background. There’s […]

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Infographic of the history of advantages in Survivor Data Science R Survivor

Survivor Advantages: Dataset showcase for {survivoR}

June 10, 2022 Daniel Oehm 0 Comments

Advantages were introduced to Survivor to give players an edge and to shake up the strategy. A successful play can […]

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Data Science Survivor

Survivor Do or Die: Should you sit out or fight for immunity?

May 15, 2022 Daniel Oehm 0 Comments

Simulation analysis in R to determine the odds of success behind the Do or Die twist in Survivor

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Data Science R Survivor

survivoR v1.0 is now on CRAN

May 14, 2022 Daniel Oehm 0 Comments

I’m happy to announce that survivoR v1.0 is now on CRAN. The package now contains all the features intended for […]

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Data Science Survivor

Racial Bias in Survivor: Are People of Colour Disproportionately Voted Out First?

May 4, 2022 Daniel Oehm 0 Comments

After episode 9 of season 42 of Survivor, there was a lot of discussion of implicit racial bias in Survivor. […]

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Data Science R

survivoR now on CRAN!

April 10, 2021 Daniel Oehm 0 Comments

I am pleased to announce survivoR 0.9.2 is now on CRAN. The survivoR data package is a collection of datasets […]

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Data Science

Don’t get fooled by the Gambler’s Fallacy

August 17, 2020 Daniel Oehm 0 Comments

A while ago I simulated Martingale strategies and some variations. This is the strategy where you double your bet on […]

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Data Science R

Evolve new colour palettes in R with evoPalette

June 7, 2020 Daniel Oehm 0 Comments

What’s that saying? Choice is the enemy of happiness, or something like that. There are so many colour palettes out […]

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Data Science Python R

Some basics and intuition behind GAN’s in R and Python

April 15, 2020 Daniel Oehm 0 Comments

Generative Adversarial Networks are great for generating something from essentially nothing and there are some interesting uses for them. Most […]

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Data Science R

Simulating data with Bayesian networks

October 15, 2019 Daniel Oehm 0 Comments

Bayesian networks are really useful for many applications and one of those is to simulate new data. Bayes nets represent […]

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Data Science R

Use more of your data with matrix factorisation

September 12, 2019 Daniel Oehm 0 Comments

Previously I posted on how to apply gradient descent on linear regression as an example. With that as background it’s […]

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Data Science R

Bayesian estimation of fatality rates and accidents involving cyclists on Queensland roads

May 23, 2019 Daniel Oehm 0 Comments

In my previous post I built a Shiny app mapping accidents on Queensland roads which was great at showing the […]

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Data Science R

Queensland road accidents mapped with Shiny and leaflet in R

May 2, 2019 Daniel Oehm 0 Comments

The Queensland government collects data on road accidents dating back to 1st January 2001 and details characteristics of the incident […]

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    Recent Posts
    • Alone R package: Datasets from the survival TV series
    • Select colours from an image in R with {eyedroppeR}
    • How to crop an image to a circle in R with {cropcircles}
    • Survivor Confessionals Data: Dataset showcase for {survivoR}
    • How to use multiple colour scales in ggplot with {ggnewscale}
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