Help using Base SAS procedures

Calculations on empty fields

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Occasional Contributor
Posts: 9

Calculations on empty fields

All,

I have a large dataset in which the majority of the cells are not populated, indicated by a '.'. This was a result of creating columns when I executed a proc transpose.

ABC

A + B + C

(CALCULATION)

1.1015.
220102050
3....

1. In datastep when I try to calculate A + B + C for row 1 in the above example, the returned value is . ,rather than 25. How do I perform a sum across columns when one or more of the fields is empty.

2. Alternatively, is there a quick way of doing an if A = . then A = 0 across two hundred columns, without having to do an if statement for all columns. Can this be done across the whole database.

3. Alternatively, is there something I can do in the proc transpose which populates the fields as 0s rather than . s

Any help would be greatly appreciated !

Regards,

Michael

Respected Advisor
Posts: 3,124

Re: Calculations on empty fields

Sum() function: Sum(a,b,c)

Respected Advisor
Posts: 3,777

Re: Calculations on empty fields

Better still leave out the transpose and just SUM the values using PROC SUMMARY using the same BY statement you used in PROC TRANSPOSE.

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