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Ksharp
Super User

I am wondering if there are some query tools in IML?

Like MERGE in data step. LEFT JOIN in SQL .

Xia Keshan

2 REPLIES 2
Rick_SAS
SAS Super FREQ

Not really. Most data preparation is done outside of IML by using the DATA step or SQL. There is nothing in SAS/IML that matches their power and convenience.

You can, of course, use the LOC function, in conjunction with subscripting and concatenation, to match and merge rows of matrices. The UNIQUE-LOC technique is often used to combine data by matching categories.  The EXPANDGRID function is a kind of joining operation, since it is a Cartesian product operation.

Ksharp
Super User

Thanks . Rick .

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