Debugging a DATA Step (7)

Understanding DATA Step Processing

Debugging a DATA Step

The PRINT procedure displays the data set with the missing values for IDnum. In this example, the periods indicate that IDnum is a numeric variable, although it should be defined as a character variable.

     proc print data=perm.update;
     run;

Obs Item IDnum InStock BackOrd Total

1 Bird Feeder . 3 20 23

2 6 Glass Mugs . 6 12 18

3 Glass Tray . 12 6 18

4 Padded Hangrs . 15 20 35

5 Jewelry Box . 23 0 23

6 Red Apron . 9 12 21

7 Crystal Vase . 27 0 27

8 Picnic Basket . 21 0 21

9 Brass Clock . 2 10 12

Obs	Item	IDnum	InStock	BackOrd	Total
1	Bird Feeder	.	3	20	23
2	6 Glass Mugs	.	6	12	18
3	Glass Tray	.	12	6	18
4	Padded Hangrs	.	15	20	35
5	Jewelry Box	.	23	0	23
6	Red Apron	.	9	12	21
7	Crystal Vase	.	27	0	27
8	Picnic Basket	.	21	0	21
9	Brass Clock	.	2	10	12