Hilbert curves are pretty cool. The animation illustrates the fractal quality of successive generations of Hilbert curves.» Permalink
Using U.S. Census Bureau data and geographies, I've computed a Relative Rurality Index for almost 11,000 U.S. school districts. The index is calculated based on the distance between centroids of each district and the nearest urban cluster with a population of fifty thousand or greater, the population density of the county in which the district is located, and the population decline of the same county (2010-2018), each scaled to the national extrema and composited with more weight given to remoteness (scaled distance from nearest urban area) and sparseness (inverse of scaled population density). The aim here is to develop a basis for intranational comparisons within and across studies as well as for site selection and recruitment. Initial results seem promising.
The index was compiled using custom Python scripts relying heavily on the bindings for OSGEO's OGR library. The maps, previews of which appear above, are generated using my custom vector rendering package vfr. The projection is the U.S. National Atlas Equal Area projection (EPSG:2163).
The key products are a detailed index file and a summary file. The detailed index file contains one row for each school district, its rurality index, the component indices, and additional useful data as in the excerpt below (taken from around the median). The summary file contains national and state-level extrema and statistics. Optionally, a shapefile is also generated, identical to the U.S. Census Bureau UNSD product but augmented with the Rurality Index and its component indices.» Permalink
Goddammit, you were important to me, for what it's worth.
The New Idea
From a third floor window I spray a sad look» Permalink
down into the courtyard of the office park
filled with cold pebbles and benches.
There are little donuts for sale in the breakroom
vending machine called gems or donettes
or gemettes, I can't remember,
and I'd rather not retrace the string of decisions
that have left me stupefied before an inspirational
poster that claims "The First Word in Can't is Can."
Due to its dense history of uncomfortable moments,
our elevator is haunted with poorly conceived smiles
and sinking hearts, so I take the stairs
to the boardroom and pass a mailroom clerk
with reggae leaking out his walkman
and a crumpled secretary who,
as the cruel office rumor goes,
keeps a thermos on her desk filled
with the ashes of her dead bulldog.
It would be difficult to admit that no one
ushered me as a blip onto this cold grid.
no one asked me to design my life
to fit the dimensions of this situation,
stranded in an office whose walls
are strange mathematical mountains,
so out of touch with my own body
that I watch my handwriting appear on a legal pad
like rainspots on a sidewalk.
I was in high school
when I realized that not doing anything
was categorically different from deciding to do nothing,
but beauty blew a fuse, the hold music put me in a trance,
and what was black and heading towards me
transported me here like a cow in a comic hurricane.
Our CEO is in Asia and the staff has gathered
in the boardroom for his televised conference call.
An inter-office newsletter is passed around
by a clerk I once caught pressing warm xerox copies
to his face and who later tried to shake my hand
in the men's room. "The universe, she is a bitch,"
he said, and I liked him for not knowing that men
characteristically shut down in restrooms.
I suppose it's difficult to work with people
who are comfortable inside of nightmares,
though even the numbest of us are intimidated
by the unnatural bulk of "his" life story
by "his" portrait hanging on the east wall,
glowing with rush hour romance, hair groomed
into place by the soft breezes of annuity,
in this room where many times I have seen the world
end in a vice-president's inadvertent comment and
suddenly start up again with a slight retraction.
I shake a few hands,
never precisely sure when to let go,
and the monitor flickers on, revealing the Chairman
wearing a white robe, sleeping in a Chinese stream
with a single chrysanthemum tucked behind his ear.
His arms are like slackened chain
in the puttering current.
Our pens hover over the legal pads.
We are to understand something by this,
a Providence engineered to go void at five,
glassed over by the fantastic qualities of gin,
cast as we are into this underimagined place.
Galileo...noted the curve now known as the cycloid, traced out by a point on the rim of a wheel as it rolls along a horizontal path... [H]e abandoned study of the curve, suggesting only that the cycloid would make an attractive arch for a bridge... Carl B. Boyer, A History of Mathematics. Wiley & Sons, 1989. p. 327
It would surprise nobody to hear Donald Trump or even a Republican member of Congress make a remark like this one:
[W]hereas the liberal idea presupposes that nothing needs to be done [about migration, we are taking action]. The migrants can kill, plunder and rape with impunity because their …
Matt Bruenig at People's Policy Project posted a pretty staggering chart illustrating the difference in changes to net wealth between the top 1% of Americans and the bottom 50% over the interval 1989-2018. I grabbed the same data and plotted each category, starting with the above, "Net worth".
The rich are getting a lot richer, and the bottom half of the country is treading water (at best).
More charts below. The Fed also provides its own interactive visualizations.» Read more
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