![]() Step 2 : The variable you want to use for merging must have same name in both the datasets. Step 1 : Both the data sets must be SORTED by the variable you want to use for merging. Read in as many SAS data sets in one DATA step as possible (SET or MERGE statement). Important Steps when using MERGE Statement.Use LENGTH statements to reduce variable size.Create as many data sets in one DATA step as possible with OUTPUT statements.data have input City grade1 grade2 grade3 cards NY A. Create a new SAS data set by reading an existing SAS data set with a SET statement with keeping selected observations based on the values of only a few incoming variables Sort the data by the City variable so you can use it as a BY and then use PROC TRANSPOSE. ![]() Proceedings of the Fifth Annual Western Users of SAS Software. Figure 8.2 Histogram of skewed paired data (a) before and (b) after log transformation with normal distribution curve. ![]() Figure 8.1 Code Click here to show code as text. Process and store only the variables that you need by using KEEP/DROP= data set options (or KEEP/DROP statements) to retain desired variables when reading or creating a SAS data set Proceedings of the Eighth Annual NorthEast SAS. Chapter 8: Analysing matched or paired data using SAS Figure 8.1 Output for a paired t-test.Create a data set by reading long records from a flat file with an input statement with keeping the selected records with a needed incoming variables (?) Compiled and analyzed health data with more than 8 experiences in using SAS,SPSS and S-Plus and SAS tools such as, Base SAS, SAS/Macros, SAS/STA, SAS/GRAPH.Here are some ways to reduce the amount of temporary data storage required by a program: Data storage is primarily concerned with temporary datasets generated during program execution which can become very large and slow down processing.
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