Andy Eschbacher andy-esch

ODSC East (Boston) - 2019

Making good maps in data science is hard. Maps are another form of data visualization with its own set of design principles to bring out the story in the data. Data scientists need for maps varies, but a very common use case is to quickly generate a data visualization iteratively to better understand model outputs, spatial variations in the data, and more.

In this mini-tutorial, I will cover best practices for data scientists needing maps -- ideas pulled from cartography and honed over the years working in the intersection of open source GIS and data science. Using open source tools, I will show how to make patterns more apparent, how to build interactive maps so that it is easier to explore data on larger and smaller scales, and some list some cartographic tips and tricks. The goal is that data viz with maps will be made easier so that you can think about your data science problems instead of worrying about visualizing data on a map.

CARTO at SVA

Andy Eschbacher, @MrEPhysics Data Scientist at CARTO

Introduction

Maps I like

Subway station demographics

CARTO

Feb 7, 2017

Andy Eschbacher, andy@carto.com, @MrEPhysics

	<!DOCTYPE html>
	<html>
	<head>
	<title>CARTO VL + CARTOframes</title>
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta charset="UTF-8">
	<!-- Include CARTO VL JS -->
	<script src="https://cartodb.github.io/carto-vl/dist/carto-vl.js"></script>
	<!-- Include Mapbox GL JS -->
	<script src="https://cartodb-libs.global.ssl.fastly.net/mapbox-gl/v0.48.0-carto1/mapbox-gl.js"></script>

	<!DOCTYPE html>
	<html>
	<meta charset="utf-8">
	<style>

	body {
	font: 10px sans-serif;
	}

	.axis path,

	with envelope as (
	SELECT
	ST_SetSRID(ST_Extent(the_geom), 4326) as env,
	count(*)::int as cnt
	FROM
	eschbacher.mexican_states
	),
	numers as (
	SELECT
	unnest(Array['mx.inegi.entidad', 'mx.inegi.localidad_urbana_y_rural_amanzanada']::text[]) as geom_id,

	"""Class for updating a cartoframe postgres table"""

	class SQL(object):
	"""class for building queries for syncing"""
	def __init__(self, cartoframe):
	""""""
	self.cframe = cartoframe

	def add_cols(self):
	"""prototype methods for add columns to table/dataframe"""

	<!DOCTYPE html>
	<html>
	<head>
	<title>cartoframes</title>
	<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
	<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
	<link rel="shortcut icon" href="http://cartodb.com/assets/favicon.ico" />

	<!-- Map takes up full browser window -->
	<style>