Dan Oehm | Gradient Descending

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Alone R package: Datasets from the survival TV series

January 20, 2023No Comments

Select colours from an image in R with {eyedroppeR}

December 6, 2022No Comments
Hex sticker for the cropcircles R package

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

September 11, 2022No Comments

Survivor Confessionals Data: Dataset showcase for {survivoR}

July 30, 2022No Comments
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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R

Fun with progress bars: Fish, daggers and the Star Wars trench run

August 15, 2019 Daniel Oehm 0 Comments

If you’re like me, when running a process through a loop you’ll add in counters and progress indicators. That way […]

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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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Ultrarunning

Buffalo Stampede Ultra 75km 2019: Race report

April 18, 2019 Daniel Oehm 0 Comments

The Buffalo Stampede is one of the most brutal races on the ultra calendar covering 75km and 4545m of climbing. […]

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Data Science R

Applying gradient descent – primer / refresher

April 18, 2019 Daniel Oehm 0 Comments

Every so often a problem arises where it’s appropriate to use gradient descent, and it’s fun (and / or easier) […]

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Data Science R

Martingale strategies don’t work, but we knew that – Simulation analysis in R

April 5, 2019 Daniel Oehm 1 Comment

It’s generally accepted that Martingale betting strategies don’t work. But people still gravitate towards them because they are intuitive. I […]

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Data Science R

Adding Custom Fonts to ggplot in R

March 16, 2019 Daniel Oehm 2 Comments

ggplot – You can spot one from a mile away, which is great! And when you do it’s a silent […]

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Data Science R

The Most Amount of Rain over a 10 Day Period on Record

February 15, 2019 Daniel Oehm 0 Comments

Townsville, Qld, has been inundated with torrential rain and has broken the record of the largest rainfall over a 10 […]

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Data Science R

Synthesising Multiple Linked Data Sets and Sequences in R

February 3, 2019 Daniel Oehm 0 Comments

In my last post I looked at generating synthetic data sets with the ‘synthpop’ package, some of the challenges and […]

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Data Science R

Generating Synthetic Data Sets with ‘synthpop’ in R

January 13, 2019 Daniel Oehm 2 Comments

Synthpop – A great music genre and an aptly named R package for synthesising population data. I recently came across […]

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Data Science R

Q-learning example with Liar’s Dice in R

December 20, 2018 Daniel Oehm 0 Comments

In my last post I coded Liar’s Dice in R and some brainless bots to play against. I build on […]

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Python

Secret Santa List Using Python

November 28, 2018 Daniel Oehm

It’s that time of year again. Christmas. Buying presents is a chore and stressful, so a popular option is Secret […]

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Data Science R

Liar’s Dice in R

November 24, 2018 Daniel Oehm

I have been playing Red Dead Redemption 2, immersing myself in the Old West as I did with the first […]

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Bits and Pieces
I'm pleased to be a contributor to R Bloggers. It is where you will find most of my posts featuring R.
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Links to Survivor assets:
  • survivoR R package Github repo
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  • Fantasy Survivor Scorecard
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    • 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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