SPSS output viewer Just let’s make a table with some corre- lations
SPSS output viewer Now, click with the right mouse button on table en choose Open…
SPSS output viewer … and you will get a new window wherein you can edit the table
SPSS output viewer Now, let’s look at the Pivoting Trays
SPSS output viewer The pivots of the table… This pivot represents the statistics This pivot represents the variables
SPSS output viewer Now put the pivot of the statistics in the layer (‘capa’) and the form of the table will change!
SPSS Syntax In each dialogbox you will see a button Paste (‘Pegar’) to create syntax.
SPSS Syntax After having done Paste (‘Pegar’) you will see a ‘command’ in the syntax window.
SPSS Syntax You can as well open a specific syntax file, i.e. Ridge Regression (in the SPSS program folder)
SPSS Syntax Why would you use syntax??? To do analyses repeatedly To use all the functions of SPSS (in dialogboxes +/- 95% is incorporated) To be independent of dialogboxes, that keep changing…(and syntax never changes)
SPSS Options Make your SPSS life easy with Edit | Options For instance by using the session journal file as a syntax file…
Graphing Relationships Some remarks: -GDP is related in a non linear way with other variables - variable Aids Cases we have a very influential point (not an outlier, but influential!) - correlation between female life expectation and male life expectation is almost 1
Graphing Relationships Let’s try to transform gdp_cap in order to get linear relationships with other variables. First let’s look at the distribution of gdp_cap with a histogram: We need to bring values on the right closer to values on the left. We might try a LN transformati on…
Transforming variables Relationships are nicely linear !
Transforming variables Note: you probably want to make a variable lifeexp out of life expectancy males and life expectancy females: Tip: use function Mean in stead of using the ‘+’ and dividing by 2
Categorical Predictors Is income dependent on years of age and religion ?
Categorical Predictors Compute dummy variable for each category, except last
Annotated output of regression analysis (it uses the file data/elemapi.sav ) http://www.ats.ucla.edu/stat/spss/webbooks/reg/chapter1/annotated1.htm For more on regression, see: http://www.ats.ucla.edu/stat/spss/webbooks/reg/chapter1/spssreg1.htm