Produk Penting

Kita telah melihat adanya pola yang jelas pada graf kita. Mari melangkah lebih jauh, tidak hanya memahami strukturnya. Dengan konteks struktur graf, apa yang bisa kita pelajari darinya? Misalnya, apa yang mendorong pembelian? Titik awalnya bisa dengan mencari "produk penting", misalnya produk yang setelah seseorang membelinya, ia kemudian membeli produk lain. Kita dapat menyimpulkan hal ini menggunakan derajat masuk (in degree) dan derajat keluar (out degree). Pertama, kita akan melihat graf kita dan memeriksa distribusi derajat masuk dan derajat keluar, lalu menggunakannya untuk menyusun definisi kerja mengenai apa itu "produk penting" (sesuatu yang memiliki > X derajat keluar dan < Z derajat masuk). Selanjutnya, kita akan membuat subgraf untuk memvisualisasikan seperti apa subgraf tersebut.

Latihan ini adalah bagian dari kursus

Studi Kasus: Analisis Jaringan di R

Latihan interaktif praktis

Cobalah latihan ini dengan menyelesaikan kode contoh berikut.

# Calculate the "out" degrees
out_degree <- ___(___, mode = "___")

## ... and "in" degrees
in_degree <- ___

# See the distribution of out_degree
___(___)

## ... and of in_degree
___

Edit dan Jalankan Kode

Latihan ini adalah bagian dari kursus

Studi Kasus: Analisis Jaringan di R

SkillTag.level.beginnerSkillTag.label

4.8+

Mulai Kursus Gratis

In this chapter you'll explore a subset of an Amazon purchase graph. You'll build on what you've already learned, finding important products and discovering what drives purchases. You'll also examine how graphs can change through time by looking at the graph during different time periods.

Exercise 1: Menjelajahi himpunan data Anda Exercise 2: Menemukan Diad dan Triad Exercise 3: Klasterisasi dan Resiprositas Exercise 4: Produk Penting

Latihan Saat Ini

Exercise 5: Apa yang Membuat Suatu Produk Penting?Exercise 6: Menjelajahi struktur temporal Exercise 7: Metrik dari waktu ke waktu Exercise 8: Memplot Metrik dari Waktu ke Waktu

In this lesson you'll explore some Twitter data about R by looking at conversations using '#rstats'. First you'll look at the raw data and think about how you want to build your graph. There's a number of ways to do this, and we'll cover two ways: retweets and mentions. You'll build those graphs and then compare them on a number of metrics.

Exercise 1: Creating your retweet graph Exercise 2: Visualize the graph Exercise 3: Visualize nodes by degree Exercise 4: What's the distribution of centrality?Exercise 5: Who is important in the conversation?Exercise 6: Plotting important vertices Exercise 7: Building a mentions graph Exercise 8: Comparing mention and retweet graph Exercise 9: Assortativity and reciprocity Exercise 10: Finding who is talking to whom Exercise 11: Finding communities Exercise 12: Comparing community algorithms Exercise 13: Visualizing the communities

In this chapter you will analyze data from a Chicago bike sharing network. We will build on the concepts already covered in the introductory course, and add a few new ones to handle graphs with weighted edges. You will also start with data in a slightly more raw form and cover how to build your graph up from a data source you might find.

Exercise 1: Creating our graph from raw data Exercise 2: Making Graphs of Different User Types Exercise 3: Compare Graphs of Different User Types Exercise 4: Compare graph distance vs. geographic distance Exercise 5: Compare Subscriber vs. Non-Subscriber Distances Exercise 6: Most Traveled To and From Stations Exercise 7: Most Traveled To and From Stations with Weights Exercise 8: Visualize central vertices Exercise 9: Weighted Measures of Centrality Exercise 10: Connectivity Exercise 11: Find the minimum cut 1 Exercise 12: Find the minimum cut 2 Exercise 13: Unweighted Clustering Randomizations Exercise 14: Weighted Clustering Randomizations

So far everything we've done has been using plotting from igraph. It provides many powerful ways to plot your graph data. However many people prefer interacting with other plotting frameworks like ggplot2, or even interactive frameworks like d3.js. In this lesson you'll look at other plotting libraries that build on the ggplot2 framework. You'll also look at other non-"hairball" type methods like hive plots, as well as building interactive and animated plots.

Exercise 1: Other packages for plotting graphs!Exercise 2: ggnet Basics Exercise 3: ggnetwork Basics Exercise 4: More ggnet Plotting Options Exercise 5: More ggnetwork Plotting Options Exercise 6: Interactive visualizations Exercise 7: Interactive plots with ggiraph Exercise 8: Interactive javascript plots Exercise 9: Alternative visualizations Exercise 10: Alternative ways to visualize a graph: Hive plots Exercise 11: BioFabric as an HTML widget Exercise 12: Plotting graphs on a map