This document provides an introduction to using the Deducer graphical user interface (GUI) for R. It discusses loading and installing the Deducer and DeducerSurvival packages, exploring a sample dataset using the GUI's data viewer and generating frequency tables and graphs. Instructions are given on reading Excel data, converting variables to factors, and using the GUI to summarize categorical and continuous variables and add smoothing to graphs.

1. Introduction to
a Graphical User Interface for
2012-10-29 @HSPH
Kazuki Yoshida, M.D.
MPH-CLE student
FREEDOM
TO
KNOW

2. Group Website is at:
http://rpubs.com/kaz_yos/useR_at_HSPH
google for user@hsph

3. Previously in this group
n Introduction
n Reading Data into R (1)
n Reading Data into R (2)
n Descriptive, continuous
n Descriptive, categorical

4. Menu
n Categorical data
n How to summarize

5. Ingredients
Statistics Programming
n Summary statistics for n None
continuous data
n Summary statistics for
categorical data

6. Learning
a new
L
language
is hard

7. R Commander: EZR:
http://socserv.mcmaster.ca/jfox/Misc/Rcmdr/ http://www.jichi.ac.jp/saitama-sct/SaitamaHP.files/statmedEN.html
Lack of
standard
GUI
Deducer:
http://www.deducer.org/

8. RStudio editor
http://rstudio.org
Fully functional Not GUI

9. EZR (modification of R Commander GUI)
http://www.jichi.ac.jp/saitama-sct/SaitamaHP.files/
statmedEN.html
Focus on medical research Still in early development

10. Deducer GUI
http://www.deducer.org
Point & Click user interface. Functions not extensive

11. Let’s install

12. Install
Deducer
DeducerSurvival

13. Download JGR
JGR for Mac:
http://rforge.net/JGR/web-files/JGR-1.6-SL.dmg
JGR for Win (32bit):
http://rforge.net/JGR/web-files/jgr-1_62.exe

15. Choose your folder

16. Package Manager to
choose packages to load

17. Turn on
Deducer
DeducerSurvival

18. Mac only: Preferences again
Turn off. It’s buggy

19. Additional menus in place !

20. Load
vcd
package

21. Data Viewer for
overview of dataset
then
library(vcd) [then hit enter]

24. Frequencies for
categorical variables

26. Frequencies for categorical data

27. Summary for
continuous variables

31. Reading Excel data

33. Rosner’s http://www.cengage.com/cgi-wadsworth/course_products_wp.pl?
dataset fid=M20bI&product_isbn_issn=9780538733496

35. Convert a variable to factor (categorical)

36. Graphs

43. Add smooth

44. Grouping by zyg

45. Grouping by zyg