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Matthew Wigginton Bhagat-Conway mattwigway

77 followers · 15 following
  • Department of City and Regional Planning, University of North Carolina at Chapel Hill
  • Durham, NC, USA
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@mattwigway
mattwigway / namedzip.py
Created July 13, 2018 00:18
# similar to Python's built in zip function, but yielding named tuples instead of tuples.
# i.e. list(namedzip(a=[1, 2], b=[3, 4])) => [namedzipitem(a=1, b=3), namedzipitem(a=2, b=4)]
# Author: Matthew Wigginton Conway <mwconway@asu.edu>
# feel free to use and share
from collections import namedtuple
def namedzip (**kwargs):
keys = list(kwargs.keys())
typ = namedtuple('namedzipitem', keys)
length = len(kwargs[keys[0]])
@mattwigway
mattwigway / boxplot.py
Last active January 4, 2018 23:23
Matplotlib boxplot with custom summary stats
# To the extent possible under law, Matthew Wigginton Conway has waived all copyright and
# related or neighboring rights to this work. This work is published from: United States.
def customBoxPlot (whiskerLo, boxLo, med, boxHi, whiskerHi, **kwargs):
fakeData = [np.array([42, 42]) for i in whiskerLo]
bp = plt.boxplot(fakeData, **kwargs)
for i in range(len(whiskerLo)):
# https://stackoverflow.com/questions/27214537
# This can't possibly be the best way to do this...
# lower whisker
@mattwigway
mattwigway / ocrpdf.sh
Last active August 21, 2017 20:35
Command-line tool to OCR PDFs
#!/bin/bash
# OCR a PDF using Tesseract and Ghostscript
# (brew install tesseract, brew install ghostscript using Homebrew on a Mac)
# Usage: ocrpdf input.pdf output.pdf
# Copyright (c) 2017 Matthew Wigginton Conway
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
@mattwigway
mattwigway / transitive.json
Created November 18, 2015 18:14
This file has been truncated, but you can view the full file.
"{"places":[{"place_id":"from","place_name":"Origin","place_lat":38.914544497799476,"place_lon":-77.0196533203125},{"place_id":"to","place_name":"Destination","place_lat":38.77335772026906,"place_lon":-77.0196533203125}],"journeys":[{"journey_id":0,"journey_name":0,"segments":[{"type":"WALK","from":{"type":"PLACE","place_id":"from"},"to":{"type":"STOP","stop_id":"1095"}},{"type":"TRANSIT","pattern_id":"66","from_stop_index":8,"to_stop_index":17},{"type":"WALK","from":{"type":"STOP","stop_id":"3581"},"to":{"type":"STOP","stop_id":"9613"}},{"type":"TRANSIT","pattern_id":"526","from_stop_index":1,"to_stop_index":27},{"type":"WALK","from":{"type":"STOP","stop_id":"1192"},"to":{"type":"STOP","stop_id":"10067"}},{"type":"TRANSIT","pattern_id":"256","from_stop_index":26,"to_stop_index":27},{"type":"WALK","from":{"type":"STOP","stop_id":"10622"},"to":{"type":"PLACE","place_id":"to"}}]},{"journey_id":1,"journey_name":1,"segments":[{"type":"WALK","from":{"type":"PLACE","place_id":"from"},"to":{"type":"STOP","stop_id":"
@mattwigway
mattwigway / StringNPE.java
Last active September 15, 2015 16:11
StringNPE.java
import org.mapdb.*;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
/**
* Created by matthewc on 9/15/15.
@mattwigway
mattwigway / addNullValues.py
Created September 9, 2015 12:50
Replace bottom-coded values with null
#!/usr/bin/python
# Remove all the -99999... values in the NL neighborhoods file and replace them with NULL
from sys import argv
import fiona
with fiona.open(argv[1]) as infile:
meta = infile.meta
meta['schema']['geometry'] = 'MultiPolygon'
@mattwigway
mattwigway / index.html
Last active August 29, 2015 14:17
<!DOCTYPE html>
<html>
<head>
<title>MetricsGraphics Confidence Bound Test</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/metrics-graphics/2.2.1/metricsgraphics.css" />
</head>
<body>
<div id="chart"></div>
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
@mattwigway
mattwigway / InverseKeys.java
Created March 16, 2015 14:16
MapDB inverse secondary keys
/**
* Create a set of Tuple2<key in original map, value> - secondary keys, backwards.
*/
public static <K, V, V2> void inverseSecondaryKeys (MapWithModificationListener<K, V> map,
final NavigableSet<Fun.Tuple2<K, V2>> set, final Function2<V2[], K, V> fun) {
if (set.isEmpty()) {
for (Map.Entry<K, V> e : map.entrySet()) {
for (V2 val : fun.run(e.getKey(), e.getValue())) {
set.add(new Tuple2<K, V2>(e.getKey(), val));
@mattwigway
mattwigway / MapDBEmptyPumpSource.java
Created February 24, 2015 18:54
Cannot use empty pump source with MapDB
import java.util.Iterator;
import org.mapdb.DB;
import org.mapdb.DBMaker;
import org.mapdb.Fun.Tuple2;
public class MapDBEmptyPumpSource {
public static void main(String... args) {
Iterator<Tuple2<String, String>> data = new Iterator () {
@mattwigway
mattwigway / accessibility.py
Last active November 26, 2020 00:31
Chicago grocery store accessibility
# Demo of using OpenTripPlanner and opentripplanner-jython
# Public domain
from opentripplanner import RoutingRequest, Graph
from opentripplanner.batch import BatchProcessor, PointSet
# Set the parameters for our search
r = RoutingRequest()
r.dateTime = 1412974800 # Friday, Oct. 10th, 2014, 4:00 pm CDT (doesn't matter for a walking search)
r.setModes('WALK')