Roll with the Polls
Maarten Lambrechts
Malofiej 24 | Pamplona
@maartenzam
?
var circle = svg.selectAll("circle.party")
.data(data)
.enter()
.append("circle")
.attr("r",0)
.attr("cy", function (d) {return height*Math.random();})
.attr("cx", function (d) {return width *Math.random();})
.style("fill", "#ccc")
.style("opacity", 1);
var map = L.mapbox.map('map', 'mediafin.k8e0gbl6')
.setView(mapcenter, zoomlevel)
.addControl(L.mapbox.geocoderControl('mapbox.places-v1', {
autocomplete: true,
position: 'bottomleft'
}));
$('#container').highcharts("StockChart",{
chart: {
backgroundColor: '#fef7ea'
},
title: {
text: 'Een kwarteeuw pieken en dalen'
},
subtitle: {
text: '25 jaar Bel20'
},
data : {
csv: csvdata,
itemDelimiter: ';',
decimalPoint: ',',
dateFormat: 'YYYY-mm-dd'
}
Explorable Explanations
The Poll Trap
Media order survey
Survey company conducts
Media report
Users click, read, watch
Media order new survey
...
Everybody
Statisticians
?
No
\text{CI} = \bar X \pm 1.96 \frac{\sigma}{\sqrt{n}}
CI=X¯±1.96√nσ
f(x) = \frac{1}{\sqrt{2\pi \sigma^2}} e^{ -\frac{(x-\mu)^2}{2\sigma^2} }
f(x)=√2πσ21e−2σ2(x−μ)2
Pr(\mathrm{Reject}\; H|H) = Pr(p \leq \alpha) = \alpha
Pr(RejectH∣H)=Pr(p≤α)=α
Introducing
Rock 'n Poll
So
Visualize uncertainty when there is uncertainty
Fight
xenographphobia
Fine print
Slide 1 | Pencil picture: emagic
Slide 8 | Alternatives to bar charts: UW Graphics
Slide 11 | Star Wars intervals: Maarten Lambrechts
Slide 11 | Fan chart: Congressional Budget Office
Slide 11 | Uncertainty visualizations: UW IDL
Slide 12 | Horizon Graphs: Flowing Data
Slide 12 | Radial Horizon Graphs: Tennis Visuals
Slide 12 | Spotlight: Kristina Szűcs
Slide 12 | Peyton Manning: New York Times
Slide 12 | Strip Plot: Maarten Lambrechts
Rock 'n Poll
By maartenzam
Rock 'n Poll
- 10,217