December 2014
Intermediate to advanced
858 pages
40h 10m
English
Content preview from SAS Certification Prep Guide, 4th Edition
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Combining Summary Data and Detail Data
Overview
You have seen how to combine data
from multiple data sets. Suppose you want to calculate percentages
based on individual values from a data set as compared to a summary
statistic of the data. You need to complete these tasks:
-
create a summary statistic
-
combine the summary data with the detail rows of the original data set
-
calculate the percentages
For example, the data
set Sasuser.Monthsum has one row for every value of SalesMonth (month
and year) from 1997 to 1999. Each row contains information about the
revenue generated by an airline.
|
Sales Month
|
RevCargo
|
|---|---|
|
JAN1997
|
$171,520,869.10
|
|
JAN1998
|
$238,786,807.60 ... |
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