Conditionally Processing Observations from Multiple SAS Data Sets

Learning More

DATA set options: For an introduction to data set options, see Starting with SAS Data Sets.
DO statement: See Finding Shortcuts in Programming.
IF statements: For more information about both the subsetting and conditional IF statements, see Acting on Selected Observations.
OUTPUT and subsetting IF statement: See Creating Subsets of Observations.
SUM statement and END= option: See Using More Than One Observation in a Calculation.