29 slides on spss for beginners
DESCRIPTION
SPSS is a great tool for statistical analysis and data modeling. This presentation was put together for the beginner who wants to know how to get started. Topics covered include the history of SPSS, the different types of editors, setting up data variables, and entering data.TRANSCRIPT
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yves sukhu
29SLIDES TO INTRODUCE
SPSSFOR THE BEGINNER IN STATISTICAL ANALYSIS AND DATA MODELING
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Statistical Product and Service Solutions.
The SPSS acronym used to stand for:
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yves sukhu
HistorySPSS has a long heritage
• Introduced in 1968.• Was originally developed to facilitate statistical
analysis in the social sciences.• Early versions designed to run on mainframe
computers.• Purchased by IBM® in 2009 for more than $1 billion
dollars!
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SPSS: An IBM® Company Now the company is known as:
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very user friendly
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yves sukhu
General CapabilitiesSPSS has a lot of great features• Can import data from many different sources, such
as Microsoft® Excel and SAS®.• Provides analysis tools to generate reports, charts,
plots, descriptive statistics, and run advanced statistical analyses.
• In addition to user interface, provides a command syntax that can simplify certain things, such as running repetitive tasks.
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yves sukhu
SPSS EditorsGetting familiar with the SPSS user interface• There are different windows that the user uses to
interact with SPSS.• These are called “Editors”.• Some of the common Editor windows are:– Data Editor (enter and view your data)– Syntax Editor (edit your data manipulation syntax)– Viewer Editor (view results from your analysis)– Chart Editor (edit and save charts in the chart editor)
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data editor
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syntax editor
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viewer editor
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chart editor
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yves sukhu
Manually Entering DataSPSS makes it easy.• Start with the Data Editor.• There are two tabs at the bottom:– Data View– Variable View
• Gives you two ways to enter data:– Start with Data View and just start typing!– Start with Variable View and define your variables first.• Think of variables as labels that describe your data.
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housing dataLet’s try it out with some hypothetical
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the address, price, yearWe’ll use
built, and square footageto describe each home
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entering data with data view
Data is entered by row. So, just start typing the data starting with row 1. Notice that SPSS gives each column an arbitrary (e.g. VAR00003) variable (or label) name.
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defined our variablesIf we take a look at the Variable View, SPSS has
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our variables look like…
SPSS noticed that the first column is text data (the home address). Notice also, that SPSS gives this variable a specific width of 21 characters based on the first entry. That means every subsequent address entry can not be more than 21 characters, unless we change the width here.
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we can edit our variables
To edit a variable, just click on it and change the value. In this case, we changed the name to “Address” and the width to “30”.
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Variable View firstNow let’s enter data again, but we’ll start with the
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as soon as you type a label…
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SPSS pre-populates
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edit itJust click on a variable attribute to
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clicking on “Type”
Now you can edit the variable type. In this case, we would change it to “String” and adjust the Width to a larger value.
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clicking on “Label”
You can add descriptions (“labels”)to your variables.
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entering all our variables
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can not have spacesOne thing to keep in mind is that variable names
(e.g. “YearBuilt” is ok, but “Year Built” will cause an error)
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now we can enter our data
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yves sukhu
Importing DataYou can import from a variety of sources.• Easier than manually copying data into SPSS.• You have a lot of out-of-box import options:
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IBM® SPSS.It’s that easy to get started with
You can download a 14-day trial at:http://www14.software.ibm.com/download/data/web/en_US/trialprograms/W110742E06714B29.html