De visualisatie evalueren

Er zijn interessante en uiteenlopende patronen in het aantal ritten voor verschillende routes. Experimenteer eens met sorteren en filteren op verschillende statistieken. Wat zijn de meest voorkomende begin- en eindstations? Zijn sommige stations meer gekoppeld aan ontspanningsritten vs. woon-werkritten? Zijn woon-werktrajecten over het algemeen langer of korter in afstand/duur?

Beantwoord nu de volgende vraag: Welke route met een gemiddelde ritduur van minder dan 10 minuten heeft de meeste ritten in totaal?

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Grote datasets visualiseren met Trelliscope in R

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Praktische interactieve oefening

Zet theorie om in actie met een van onze interactieve oefeningen.

Begin met trainen

Deze oefening maakt deel uit van de cursus

Grote datasets visualiseren met Trelliscope in R

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Begin de cursus gratis

Learn different strategies for plotting big data using ggplot2, including calculating and plotting summary statistics, various techniques to deal with overplotting, and principles of small multiples with faceting, which leads into Trelliscope.

Exercise 1: Visualizing summaries Exercise 2: Daily ride counts Exercise 3: Distribution of cab fare amount Exercise 4: Distribution of payment type Exercise 5: Adding more detail to summaries Exercise 6: Relationship between trip duration and total fare Exercise 7: Faceting daily rides Exercise 8: Tip amount distribution faceted by payment type Exercise 9: Visualizing subsets Exercise 10: Comparing fare distribution by payment type Exercise 11: Visualizing all subsets

In the previous chapter you saw how faceting can be used as a powerful technique for visualizing a lot of data that can be naturally partitioned in some meaningful way. Now, using the trelliscopejs package with ggplot2, you will learn how to create faceted visualizations when the number of partitions in the data becomes too large to effectively view in a single screen.

Exercise 1: Faceting with TrelliscopeJS Exercise 2: Trelliscope faceting gapminder by country Exercise 3: Interacting with the TrelliscopeJS displays Exercise 4: Interacting with the display Exercise 5: Additional TrelliscopeJS features Exercise 6: Customizing the gapminder display Exercise 7: Examining the new cognostics Exercise 8: Adding your own cognostics Exercise 9: Adding custom cognostics Exercise 10: Interpreting custom cognostics

The ggplot2 + trelliscopejs interface is easy to use, but trelliscopejs also provides a faceted plotting mechanism that gives you much more flexibility in what plotting system you use and how to specify cognostics. You will learn all about that in this chapter!

Exercise 1: Trelliscope in the tidyverse Exercise 2: Grouping and nesting Exercise 3: Stock price display Exercise 4: Exploring the display Exercise 5: Cognostics Exercise 6: Adding cognostics Exercise 7: Cognostics from nested data frames Exercise 8: Navigating stock plots with new cognostics Exercise 9: Trelliscope options Exercise 10: Customizing the stock display Exercise 11: Visualizing databases of images Exercise 12: Visualizing Pokemon Exercise 13: The most powerful Pokemon

<a href="https://www.bixi.com" target="_blank">The Montreal BIXI bike network</a> provides open data for every bike ride, including the date, time, duration, and start and end stations of the ride. In this chapter, you will analyze data from over 4 million bike rides in 2017, going between 546 stations. There are many interesting exploratory questions to ask from this data and you will create exploratory visualizations ranging from summary statistics to detailed Trelliscope visualizations that will give you interesting insight into the data.

Exercise 1: BIXI-fietsdata van Montreal Exercise 2: Aantal ritten per dag Exercise 3: Tijdstip van de dag onderzoeken Exercise 4: Effect van lidmaatschap en weekdag Exercise 5: Samenvatting: visualisatie-terugblik Exercise 6: Dagelijkse grafieken Exercise 7: Alle dagen bekijken Exercise 8: Gegevensset met top 100-routes Exercise 9: Data uitbreiden: samenvattende statistieken per route Exercise 10: De data visualiseren: Aantallen per uur van de dag Exercise 11: De visualisatie evalueren

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Exercise 12: Au revoir