Users can use the Date & Time Wizard from the Transform menu to convert string variables into dates.
In the Data View, first select the entire column of the variable you want to move by clicking its name, then drag it to its new location. Alternatively, you can also go to the Variable View and reorder rows.
Missing values are normally omitted from most calculations in SPSS.
There are two types of missing values in SPSS: system missing values and user missing values. System missing values are data that is not present in the dataset and are shown as periods in the data view. This may occur when respondents skip some questions; User missing values are values that are excluded by the user when analyzing or editing data, such as unlikely values and answers like “don’t know” or “not applicable”.
User missing values can be specified in Variable View:
You can also use Frequencies to identify the number of missing values.
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