Livestock value chain

1. Arba Minch University
College of Agricultural Science
Short-term training on SPSS
By
Bizuayehu A. (M.Sc.)
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2. 1.SPSS for beginners: Introduction
#. What is SPSS?
#. How to open SPSS software?
#. How to open data using SPSS?
#. How to save data using SPSS?
#. How to quit SPSS Software?
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3. What is SPSS?
 Originally it is an acronym of Statistical
Package for the Social Science but now it
stands for Statistical Product & Service
Solutions.
 One of the most popular statistical packages
perform highly complex data
& analysis with simple
which can
manipulation
instruction.
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4. What is SPSS?...
 It is a software used for data analysis in
business research- can be used of:
 Processing questionnaires
 Reporting in Tables & Graphs
 Analyzing: Means, chi-square, t-test, F-test,
correlation and regression & much more
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5. Starting with SPSS
 Go to START, PROGRAMS, and click on
the SPSS version of your choice or
 The short-cut menu on the desktop. Double
click on the icon of the version that you want
to use.
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6. Starting with SPSS…
 Start → All Programs → SPSS Inc→ SPSS
16.0 → SPSS 16.0
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7. Opening Existing Data
 There are two ways of
accessing existing data from a
saved file.
 From the opening screen, the
first method is to click on the
“Open existing data source” option.
 Then click “OK”.
 Then select the disk that
contains the data, & open the
data.
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8. Opening Existing Data…
 You can also access saved data when you
are already in the data screen.
 Click on FILE, OPEN, then DATA.
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9. Opening Existing Data…
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10. Opening Existing Data…
 Now simply go to the drive that has your
data, highlight the data file and click Open.
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11. Data editor window
• The default window will have the data editor
• There are two sheets in the window:
1. Data view 2. Variable view
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12. Data editor –Data view window…
• The Data View window
 This sheet is visible when you first open the Data Editor and
this sheet contains the data
• Click on the tab labeled Variable View
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Click

13. Data editor – Variable view window…
 Variable View window
• This sheet contains information about the data set that is stored with
the dataset
• Name
• The first character of the variable name must be alphabetic
• Spaces are NOT allowed.
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Click

14. To Save a Data File
 The file must always be saved in order to save the
work that has been done to date:
 Click on the FILE pull-down menu & then click on
SAVE.
 If it is a new file, you type in the file name you wish
to use.
 If it is an existing file & you wish to keep the name,
simply click on "OK".
 If you wish to save the file under another name, click
on SAVE AS & name the file. 14

15. To Save a Data File…
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16. To Save a Data File
 You must save the data editor window &
output viewer window separately.
 Make sure to save both if you want to save
your changes in data or analysis.
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17. To Quit SPSS Window
 Click on EXIT from the File menu.
 SPSSWIN prompts the user whether to save
various files.
 The user responds accordingly. Thereafter,
SPSSWIN closes & the user is returned to the
desktop.
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18. 2.Files created & used by SPSS
Window
#. Data can be saved into different usable
format?
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19. Files created & used by SPSS
Window
 SPSS window data files have the extender
".SAV".
 It is possible to use other types of files in
SPSS. They include:
1. SPSS/PC+ system files
• SPSS will read SPSS/PC+ system files if they have the
extender ".SAV".
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20. Files created & used by SPSS
Window …
2. Spreadsheet files (e.g., Excel)
 The spreadsheet should be set up with Rows as cases
(respondent, questionnaire, etc.) and the Columns as
variables (age, race, etc.).
3. Database files (e.g., dBase)
 SPSS data files can be saved in various
formats.
 Click on FILE ⇒ SAVE AS ⇒ SAVE AS TYPE
and click on the preferred format.
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21. 3.Menus & Toolbars
#. What are the various menus & toolbars in SPSS?
#. What are the data editor menus & their usage?
#. What is the navigator output menus &their usage?
#. What is the formatting tool bar menus & their usage?
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22. Data Editor Menu
 Various pull-down menus appear at the top of
the Data Editor window.
 These pull-down menus are at the heart of
using SPSSWIN.
 The Data Editor menu items (with some of the
uses of the menu) are:
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23. Data Editor Menu…
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24. Data Editor Menu…
 The Data Editor menu items (with some of the uses
of the menu) are:
 FILE used to open & save data files
 EDIT used to copy & paste data values; used to find
data in a file;
 OPTIONS allows the user to set general preferences as well as the setup
for the Navigator, Charts, etc.
 VIEW user can change toolbars; value labels can be
seen in cells instead of data values
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25. Data Editor Menu…
 DATA insert variables & cases; select, sort or weight
cases; merge files
 TRANSFORM compute new variables, recode
variables, etc.
 ANALYZE perform various statistical procedures
 GRAPHS create bar and pie charts, etc
 UTILITIES obtain information about variables in the
active data file, etc.
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26. Data Editor Menu…
installed
 ADD-ons these are features not currently
(advanced statistical procedures)
 WINDOW switch between data, syntax and navigator
windows
 HELP to access SPSSWIN Help information
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27. Navigator (Output) Menus
 When statistical procedures are run or charts
are created, the output will appear in the
Navigator window.
 The Navigator window contains many of the
pull-down menus found in the Data Editor
window.
 Some of the important menus in the Navigator
window include:
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28. Navigator (Output) Menus…
 INSERT used to insert page breaks, titles, charts,
etc.
 FORMAT for changing the alignment of a
particular portion of the output
 UTILITIES can be used to change the designated
Output Navigator window when two or more are
open
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29. Formatting Toolbar Menus…
 When a table has been created by a statistical
procedure, the user can edit the table to create a
desired look.
 Various pulldown menus are activated when the
user double clicks on the table.
 These include:
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30. Formatting Toolbar Menus…
 EDIT undo and redo a pivot, select a table or
table body (e.g., to change the font)
 INSERT used to insert titles, captions and
footnotes
 PIVOT used to perform a pivot of the row
and column variables
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31. 4.The three Windows of SPSS
#. What are the use of the three windows of SPSS?
1.Data Editor
2.Output Viewer
3.Syntax Editor
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32. 1.Data Editor Windows…
 SPSS has three windows for working with data:
The Data Editor Window shows data in two
forms:
• Data view
• Variable view
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33. 1.Data Editor Windows…
 Data Editor
 Spreadsheet-like system for defining, entering, editing,
& displaying data.
 Extension of the saved file will be “sav.”
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34. 2.Output Viewer windows
 Output Viewer
 The Output Viewer Window shows results of data
analysis
 Displays output & errors.
 Extension of the saved file will be “spv.”
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35. 3. Syntax editor windows
 Syntax Editor
 Shows the syntax command script. This is also where
you can type & run your own syntax commands.
 Extension of the saved file will be “sps.”
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36. Exercise
 Upload SPSS software on your laptop &
try to understand basic SPSS window
feature provided in the lecture class?
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