User Guide

178
Chapter 8
Figure 8-2
Add Case s dialo g box
Unpaired Va riables. Variables to be excluded from the new, merged data file. Variables
from the
working data file are identified with an asterisk (*). Variables from the
external data file are identified with a plus sign (+). By default, this list contains:
 Variables from either data file that do not match a variable name in the other
file. Yo
u can create pairs from unpaired variables and include them in the new,
merged file.
 Variables defined as numeric data in one file and string data in the other file.
Numeric variables cannot be merged with string variables.
 String variables of unequal width. The defined width of a string variable must be
the sam
einbothdatafiles.
Variables in New Working Data File. Variablestobeincludedinthenew,mergeddata
file. By default, all of the variables that match both the name and the data type
(numer
ic or string) are included on the list.
 You c a
n remove variables from the list if you do not want them to be included in
the merged file.
 Any unpaired variables included in the merged file will contain missing data for
cases from the file that does not contain that variable.