IBM Support

Unexpected results when computing numbers or rounding

Troubleshooting


Problem

I'm using SPSS Statistics and have noticed that it sometimes doesn't produce correct results when rounding numbers using the RND function, and that in some cases the results differ across different versions or releases. Also, sometimes when I compute values in two different ways that are mathematically equivalent, I get slightly different results. Finally, I've noticed that if I type a number with more than 16 digits in it into a cell in the Data Editor, the value is sometimes changed by the program. Why are these things happening, and what can I do about them?

[{"Product":{"code":"SSLVMB","label":"IBM SPSS Statistics"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Not Applicable","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"Not Applicable","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]

Log InLog in to view more of this document

This document has the abstract of a technical article that is available to authorized users once you have logged on. Please use Log in button above to access the full document. After log in, if you do not have the right authorization for this document, there will be instructions on what to do next.

Historical Number

66550

Document Information

More support for:
IBM SPSS Statistics

Software version:
Not Applicable

Document number:
426871

Modified date:
16 June 2018

UID

swg21488470

Manage My Notification Subscriptions