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@kjordahl
kjordahl / onewire.pde
Created June 1, 2011 16:48
Arduino sketch to read data from DS18x20 digital temperature sensors
/* Name: onewire.pde
Read data from multiple DS18x20 digital temperature sensors
DS18B20 <http://www.maxim-ic.com/datasheet/index.mvp/id/2812>
DS18S20 <http://www.maxim-ic.com/datasheet/index.mvp/id/2815>
* Detect number and type of sensors, and whether each is using parasitic power
* Gracefully handles plugging/unplugging of sensors (but will not
detect new sensors after initialization)
@kjordahl
kjordahl / shake.cmd
Created August 23, 2011 22:53
Plot smoothed version of USGS Community Internet Intensity Map with GMT
#!/bin/sh
wget -O usgs.txt http://earthquake.usgs.gov/earthquakes/dyfi/events/se/082311a/us/cdi_zip.txt
gmtset COLOR_NAN white
gmtset FORMAT_GEO_MAP DF
gmtset FONT_LABEL '16p,Helvetica,black'
I=0.1
R=`awk '{FS=","; print $6, $5, $2}' usgs.txt | minmax -I1`
echo $R
N=`awk 'BEGIN{FS=","}{SUM += $3} END {print SUM}' usgs.txt`
R=-R-85/-70/34/45
@kjordahl
kjordahl / pudb-add-breakpoint
Created January 25, 2012 19:31
Emacs lisp code to add pudb breakpoint to a python file (add to .emacs)
;; this location is "~/.pudb-bp" in older versions of pudb
(setq pudb-bp-file (expand-file-name "~/.config/pudb/saved-breakpoints"))
(defun pudb-add-breakpoint ()
(interactive)
(append-to-file
(concat "b " buffer-file-name ":"
(nth 1 (split-string (what-line))) "\n")
nil pudb-bp-file))
(define-key py-mode-map (kbd "C-c C-t") 'pudb-add-breakpoint)
@kjordahl
kjordahl / multi_detector.py
Created February 17, 2012 15:19
multiprocessing test
#!/usr/bin/env python
'''
based on gil_detector.py
http://codepad.org/CeI6gJLk
Swapped out multiprocessing for threading
Effective use of multiple processors is done by checking how fast multiprocess code
is executed in relation to single-threaded code.
'''
@kjordahl
kjordahl / garradd.py
Created February 26, 2012 17:31
Calculate position of Comet Garradd
#!/usr/bin/env python
# -*- coding: iso-8859-15 -*-
"""Calculate position for comet Garradd
Author: Kelsey Jordahl
Time-stamp: <Sun Feb 26 12:28:17 EST 2012>
License: GPLv3
"""
import ephem
@kjordahl
kjordahl / cat311.json
Created September 29, 2012 14:27
NYC 311 map using D3 and Leaflet
{"1024000": {"taxi": 18, "squeegee": 0, "noise": 112, "radioactive": 0, "street_condition": 7, "snow": 0, "sewer": 0, "graffiti": 0, "food_poisoning": 3, "streetlight": 0, "total": 210, "hpd": 0}, "3072000": {"taxi": 1, "squeegee": 0, "noise": 22, "radioactive": 0, "street_condition": 93, "snow": 17, "sewer": 12, "graffiti": 2, "food_poisoning": 4, "streetlight": 25, "total": 963, "hpd": 309}, "3080200": {"taxi": 9, "squeegee": 0, "noise": 120, "radioactive": 0, "street_condition": 82, "snow": 8, "sewer": 12, "graffiti": 21, "food_poisoning": 1, "streetlight": 83, "total": 3300, "hpd": 2392}, "4029100": {"taxi": 12, "squeegee": 0, "noise": 74, "radioactive": 0, "street_condition": 65, "snow": 36, "sewer": 14, "graffiti": 14, "food_poisoning": 18, "streetlight": 50, "total": 1993, "hpd": 655}, "4005900": {"taxi": 55, "squeegee": 0, "noise": 282, "radioactive": 0, "street_condition": 111, "snow": 14, "sewer": 10, "graffiti": 22, "food_poisoning": 2, "streetlight": 123, "total": 2752, "hpd": 688}, "3088400": {"t
@kjordahl
kjordahl / cat311.json
Created September 29, 2012 16:01
NYC 311 map using D3 and Leaflet
{"1024000": {"taxi": 18, "squeegee": 0, "noise": 112, "radioactive": 0, "street_condition": 7, "snow": 0, "sewer": 0, "graffiti": 0, "food_poisoning": 3, "streetlight": 0, "total": 210, "hpd": 0}, "3072000": {"taxi": 1, "squeegee": 0, "noise": 22, "radioactive": 0, "street_condition": 93, "snow": 17, "sewer": 12, "graffiti": 2, "food_poisoning": 4, "streetlight": 25, "total": 963, "hpd": 309}, "3080200": {"taxi": 9, "squeegee": 0, "noise": 120, "radioactive": 0, "street_condition": 82, "snow": 8, "sewer": 12, "graffiti": 21, "food_poisoning": 1, "streetlight": 83, "total": 3300, "hpd": 2392}, "4029100": {"taxi": 12, "squeegee": 0, "noise": 74, "radioactive": 0, "street_condition": 65, "snow": 36, "sewer": 14, "graffiti": 14, "food_poisoning": 18, "streetlight": 50, "total": 1993, "hpd": 655}, "4005900": {"taxi": 55, "squeegee": 0, "noise": 282, "radioactive": 0, "street_condition": 111, "snow": 14, "sewer": 10, "graffiti": 22, "food_poisoning": 2, "streetlight": 123, "total": 2752, "hpd": 688}, "3088400": {"t
@kjordahl
kjordahl / bootstrap.ipynb
Created October 24, 2012 18:20
Gaussian process bootstrap plots in iPython notebook
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@kjordahl
kjordahl / gist:5306093
Created April 3, 2013 22:36
find the connection file for a running ipython process.
from IPython.kernel.zmq.kernelapp import IPKernelApp
app = IPKernelApp.instance()
print app.connection_file
@kjordahl
kjordahl / citibike.py
Created July 9, 2013 14:00
Get number of available bikes in Manhattan and Brooklyn with GeoPandas
from urllib2 import urlopen
from cStringIO import StringIO
import json
from pyproj import Proj
from shapely.geometry import Point
from geopandas import GeoSeries, GeoDataFrame
# http://www.nyc.gov/html/dcp/download/bytes/nybb_13a.zip
boros = GeoDataFrame.from_file('/nybb_13a/nybb.shp', vfs='zip://nybb_13a.zip')
url = 'http://citibikenyc.com/stations/json'