IML enables you to store and load matrices and modules in your own STORAGE library (refer to the chapter on storage features in SAS/IML Software: Usage and Reference, Version 6). The IMLMLIB library is different from this STORAGE library. IMLMLIB contains predefined modules that can be loaded only by IML.

The STORAGE library, on the other hand, is under the control of the user. You can store and load both matrices and modules. The STORE, LOAD, REMOVE, and RESET STORAGE commands apply only to the STORAGE library. You cannot store additional modules in IMLMLIB.

You can use the SHOW command to obtain information about the IMLMLIB and STORAGE libraries.

• SHOW OPTIONS displays the current settings of both STORAGE and IMLMLIB libraries and their open status.

• SHOW STORAGE displays the contents of the STORAGE library.

• SHOW IMLMLIB displays the contents of the IMLMLIB library.

• SHOW MODULES displays the names of the modules existing in the current environment. These include modules loaded from the STORAGE library or the IMLMLIB library and modules defined in the current session.