Consultancy services and training in

Data visualization, Tableau, workflow automation and other fun stuff

Lars Erlingsjö

Some of the tools and technologies I'm using


Things going on

at work, in the community, in stuff I'm reading, in my head, or elsewhere

<< musical interlude >>
Bach's Prelude in C minor:
a somewhat stumble-prone piece
Prelude in C minor


Week Numbers

"Week numbers...
how hard can it be?"

If you feel a strong urge to answer the above question, but fear that you might lose yourself in the confusion you are trying to examplify... this one is for you.

Strava API for python

How to use the Strava API to reveal your running habits.

Tableau psychedelic art

Psychedelic patterns in Tableau.
As groovy as it gets. Tableau psycadelic art

The Spotify web API and fun stuff you can do with it using Python. I have a (most likely waaay too) ambitious plan on stuff I want to build around this. But first thing's first: This is part 1: how to set up an app and how to authorize it.

Spotify part 1

<< musical interlude >>
I just recorded the Aria from Bach's Goldberg variations:
Goldberg Aria

To access open WHO data:
Use Tableau's built in OData connector and point it to ghoapi.azureedge.net/api/. No authentication required. A lot of tables... A relationship between Indicator & IndicatorDimension on IndicatorCode is a good start.

WHO data shows that life expectancy at birth increased by 6 years globally between 2000 and 2019. Amazing! I made a Tableau visualization for comparing the development in different regions. Click the image!

I recently spent some time digging up Tableau Server usage data. The amount of data that Tableau saves on how it is being used can be a bit overwhelming... So I figured that a cheat sheet might come in handy.

Tableau repository

Ok, so here I am with a new job; time to update the resume.
In order to practice what I preach (and because it's fun), I made an interactive resume in Tableau. It's embedded below and also published to Tableau Public.

Site migration

This just saved my life. Or at least it saved me a lot of manual work that was promising to be quite dull. (I didn't just confuse that with my life, did I?).

Anyway, I put together a cheat sheet to remember what I did.

I really need to do something about my html and css skills. But the webpage is now live. Eventually I might tell someone about it... Eventually.


My resume

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Contact me

I'm a nice guy