This document presents an introduction to data visualization using R. It discusses several use cases including creating a Twitter word cloud, mapping user activity data, and visualizing places visited from Foursquare check-in data on maps using R packages like RGoogleMaps. The document is a slide deck that explores popular data visualization techniques in R and walks through examples using real world datasets.

1. DATA VISUALIZATION WITH R
Introduction to data visualization with R. Use-cases from a real life
sergii.khomenko@stylight.com, @lc0d3r
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2. AGENDA
1.
Twitter word cloud
2.
User activity: The story of your data
3.
Foursquare: Places visited
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3. POPULARITY OF R

4. POPULARITY OF R
None
7
Other
70
Lisp
4
Hadoop/Pig/Hive
35
Perl
45
Unix shell/awk/gawk/sed
59
C/C++
73
MATLAB
83
SAS
121
Java
139
Python
140
SQL
184
R
257
0
50
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100
150
200
250
300

5. SMM DATA FROM TWITTER
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6. TWITTER WORD CLOUD
Fancy word cloud or inspiration for community?
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7. FIXING TWITTER OAUTH
•
•
TwitteR
Error in twInterfaceObj$doAPICall(paste("users", "show", sep = "/"), params = params, :
OAuth authentication is required with Twitter's API v1.1
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8. WORD CLOUD
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9. TWITTER FOLLOWER MAP
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10. USER ACTIVITY: THE STORY OF YOUR DATA
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11. RMYSQL
•
•
RMySQL
•
•
MySQL C Connector
libmysql.dll into MySQL bin folder
•
Sys.setenv(MYSQL_HOME="c:Program FilesMySQLMySQL Server 5.5")
RMySQL
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binary

12. BUT WE HAVE ONLY IP
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13. FIRST MAP
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14. MAKE IT MOVING
•
ImageMagic
• MPG - convert -quality 100 -delay 100 *.png stylight-signups.mpg
• GIF - convert -quality 100 -delay 100 *.png -loop 0 stylight-signups.gif
•
library(animation)
saveGIF({
for (i in 1:10) plot(runif(10), ylim = 0:1)
})
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15. ANIMATE IT!
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16. FOURSQUARE: PLACES VISITED
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17. length(table(foursquareData$country))
[1] 8
> table(foursquareData$country)
France
Germany
9
449
The Netherlands
Ukraine
3
138
Monaco
2
Montenegro
18
Russia
15
Switzerland
3

18. RGOOGLEMAPS
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19. RGOOGLEMAPS
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20. THANKS FOR YOUR ATTENTION!
Questions?
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21. Sergii Khomenko
Data Scientist
STYLIGHT GmbH
sergii.khomenko@stylight.com
@lc0d3r
http://www.stylight.com
Nymphenburger Straße 86
80636 Munich, Germany
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22. REFERENCE LIST
•
•
•
Thoughts in plain text http://lc0.github.io/
Stack Overflow Tag Trends
http://hewgill.com/~greg/stackoverflow/stack_overflow/tags/#
!r+sas+data+visualization
KDnuggets: Top Languages for analytics, data mining, data
science http://www.kdnuggets.com/2013/08/languages-foranalytics-data-mining-data-science.html