jcdcodes

CSS sure can turn into a lot of pixel tweaking if you let it. I called it quits when the need to tweak the horizontal spacing of the hour numerals from 10 to 2 became apparent.

1. General Background and Overview

• Probabilistic Data Structures for Web Analytics and Data Mining : A great overview of the space of probabilistic data structures and how they are used in approximation algorithm implementation.
• Models and Issues in Data Stream Systems
• Philippe Flajolet’s contribution to streaming algorithms : A presentation by Jérémie Lumbroso that visits some of the hostorical perspectives and how it all began with Flajolet
• Approximate Frequency Counts over Data Streams by Gurmeet Singh Manku & Rajeev Motwani : One of the early papers on the subject.
• [Methods for Finding Frequent Items in Data Streams](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.187.9800&rep

Forked from mbostock's Arc Tween Clock example.

The first thing I learned with this is that .selectAll() takes a CSS selector as its argument. When dealing with multiple copies of the same element, like the arcs and the red lines here (which are both svg:path elements), if you want to use transitions and separate styling then one must apply class or id attributes or something so that the CSS selectors for the two sets of transitions can be mutually independent.

The second thing is that I learned is that I hate code that puns. False punning I can stand (though the commentary below points out what I think is a false punning bug I fixed), but I'm not smart enough and/or don't have the energy to deal with three or four separate simultaneous meanings of "path" and "line" that all need to be kept in mind when reading and writing the same small chunk of code. I've been known to do this kind of thing in the past, particularly when writing [Grails](http://grails.o

Presenting a Path Through Town

An incomplete bibliography:

• The map is forked from the static Vector Tiles example.
• The tracks derive from my Tracing a Path thing, which in turn derives from a bunch of other d3 examlpes.
• I've been meaning to build this for probably eight years, but the combination of readily available and easily reassembled pieces including http://d3js.org, https://github.com/mbostock/d3/wiki/Gallery, and http://bl.ocks.org/mbostock; and a pretty rendering engine (the modern web browser) are relatively new on the scene.

Here's the depressing history of the time spent getting to and from work over the last several years. To my astonishment, there is no super obvious increase in the amount of time the commute takes. Perhaps my tolerance for sitting in the car is waning. (Or maybe it's a chart design problem. Or both.)

Vacations and holidays are only barely visible, with the possible exception of two and a half weeks this past June. The green band is thirty to forty minutes, which is what I tell people the drive takes.

Playing with paths, scrubbing, proximity to line segments, maps, etc. The path shown here is a Saturday morning run from late 2014.