Руководство Пользователя для spss spss 13
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Modifying Data Values
The new variable is displayed in the Data Editor. Since the variable is added to the
end of the file, it is displayed in the far right column in Data View and in the last
row in Variable View.
end of the file, it is displayed in the far right column in Data View and in the last
row in Variable View.
Figure 9-6
New variable displayed in Data Editor
New variable displayed in Data Editor
Computing New Variables
Using a wide variety of mathematical functions, you can compute new variables based
on highly complex equations. In this example, however, we will simply compute a
new variable that is the difference between the values of two existing variables.
on highly complex equations. In this example, however, we will simply compute a
new variable that is the difference between the values of two existing variables.
The data file demo.sav contains a variable for the respondent’s current age and
a variable for the number of years at current job. It does not, however, contain a
variable for the respondent’s age at the time he or she started that job. We can create
a new variable that is the computed difference between current age and number of
years at current job, which should be the approximate age at which the respondent
started that job.
variable for the respondent’s age at the time he or she started that job. We can create
a new variable that is the computed difference between current age and number of
years at current job, which should be the approximate age at which the respondent
started that job.