M635J520

Instaworries -- and a resulting mass unfollowing hack

Posted on December 28, 2013

The other day I noticed/remembered that I had an instagram account. And, according to my sister, I was quite active on it. Apparently. I kept following new persons. That suprised me, so I logged on and investigated. “I” followed 974 (or so)... [Read More]
Tags:
- hack
- gist
- fix
- Ruby
- socialmedia
Add overall lesson timing to video listings on Coursera

Posted on October 20, 2013

Marché de La Rochelle HDR Probably about two years ago - when taking Andrew Ng's excellent "Machine Learning" MOOC, Johannes sent me a piece of JavaScript that populated the video lists with overall time per lesson just by pasting it into the URL-thingy... [Read More]
Tags:
- JavaScript
- hack
- gist
- source code
- Coursera
Fix your rapid blinking Marantz SR-6004 using nothing but 3 fingers - and a thumb

Posted on August 4, 2013

A couple of years ago my (most of the time excellent) Maranz SR6004 acted up. It did't want to turn itself on. Properly. Just stood there and blinked rapidly. Its little red light that is. At me. The solution was so simple that... [Read More]
Tags:
- howto
- Hardware
- fix
D3 Map Projections revisited

Posted on March 13, 2013

One of my most popular posts on this blog is the one about my quick D3 map projections morphing hack. Today I discovered that Mike Bostock, the creator of D3 himself, has made a similar visualization now - only way nicer. Available here: http://bl.ocks.org/mbostock/3711652 Enjoy! [Read More]
Tags:
- JavaScript
- D3
- maps
- visualization
10000 views! (Yes, that is decimal, not binary.)

Posted on March 13, 2013

Next week this little blog experiment will turn 6 months, and yesterday it passed 10000 views (sans counting my own revisits - in theory), so I guess some of the things I put up here are useful to others as well (or... [Read More]
Tags:
- meta
Implementing k-means clustering in Ruby

Posted on February 14, 2013

Inspired by the partitioning problem I set about to implement a well known algorithm, k-means clustering, from memory, for fun! ... and, for science... Interestingly, this is somehow the opposite of the partitioning problem. In the partitioning problem we tried to maximize... [Read More]
Tags:
- Programming
- hack
- algorithm
- stats
- Ruby
- visualization
D3 Map Projections Morphing

Posted on February 9, 2013

Map of Australia mapped on AustraliaWe had a very good geography teacher in high school. He taught us how one should be sceptical and keep an open mind in science (using an anecdote about a scientist proposing an alternative to the theory... [Read More]
Tags:
- JavaScript
- Programming
- D3
- maps
- hack
- gist
- web
- visualization

Instaworries -- and a resulting mass unfollowing hack

Add overall lesson timing to video listings on Coursera

Fix your rapid blinking Marantz SR-6004 using nothing but 3 fingers - and a thumb

D3 Map Projections revisited

10000 views! (Yes, that is decimal, not binary.)

Implementing k-means clustering in Ruby

D3 Map Projections Morphing