What is the difference between: x=a+b+c+d; and
x=SUM(a,b,c,d);?sas
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Answer Posted / tathagata
x=a+b+c+d will result in a missing value if any one of the
value in a,b,c or d is missing.
x=sum(a,b,c,d) will give the sum assuming the missing value
as '0'
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