The Statistical Package for the Social Sciences (SPSS) is a program designed by IBM to help students and professionals analyze data for research projects. Once your data is entered into SPSS, you can display useful charts and graphs. SPSS includes the autocorrelation function (ACF), which is for time series data only. Time series data refers to the sequence of values for only one variable. ACF will help the user calculate lags for a specified number.
Open your database in SPSS statistical software.
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Click "Analyze," "Time Series" and "Autocorrelation."
Select at least one numerical variable from the "Variables" list in the "Autocorrelations" dialog box and press the right arrow.
Set any other preference options in the box that you want to add to your plot. Click "OK."
View your plotted autocorrelation in the "Output" screen, which will open in a new window.
Click "File" and "Save" to save your Output results.