The following note may be generated from a call to the IRR (or INTRR)
function in SAS 9.1, whereas in Release 8.2 the function computed a
value:

  NOTE: Invalid argument to function IRR at line x column y.

The diagnostic message is most likely to occur when the series of cash
flows passed to the function change between negative and positive
values multiple times, otherwise referred to as multiple roots.


A fix for SAS 9.1.3 (9.1 TS1M3) for this issue is available at:

http://www.sas.com/techsup/download/hotfix/e9_sbcs_prod_list.html#013603

For customers running SAS with Asian Language Support (DBCS), this
fix should be downloaded from:

http://www.sas.com/techsup/download/hotfix/e9_dbcs_prod_list.html#013603

Operating System and Release Information

A fix for SAS 9.1.3 (9.1 TS1M3) for this issue is available at:

A fix for SAS 9.1.3 (9.1 TS1M3) with Asian Language Support (DBCS) for this issue is available at :