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Problems we have:
How should we standardize school names using functions?
TRANWRD function
TRANWRD (source,target, replacement)
How to fix the school names?
We need to verify only the value 'MDR', 'PSS', '_' and numbers are valid data value for variable QEDID
VERIFY function
VERIFY (Source, valid-value)
COMPBL function
COMPBL (Argument)
PROPCASE function
PROPCASE (Argument)
Parsing a string means to take it apart based on some rules.
What is the fudamental difference between SUM,MEAN funtions and Proc Means ?
Functions
Procedures
SCAN(Source, count, delimiter)
SAS has more than 500 functions that belongs to more than 30 categories for variety of programming tasks.
The most common way to do extraction is using SUBSTR function
We will create age group variables for dataset admit. We will put age 20 to 29 to group 20, 30 to 39 to group 30, 40 to 49 to group 40 etc. How should we program it?
Old fashion way
Function way
COMPRESS function
COMPRESS(Source,'take-out','Modifier')
Round(argument, rounding-unit)