VIP for OPLS and O2PLS in SIMCA-Q 32-bit occasionally missing (Q872)

The information in this article applies to: 
SIMCA-Q 14.1
Summary: 

For OPLS and O2PLS models the different VIP-vectors are sometimes not calculated in the 32-bit version. This means that occasionally you may get empty vectors. When the vectors are calculated, the results are correct.

The vectors are: VIP (total), VIP predictive, VIP orthogonal, VIPcv, VIPcvSE and contributions weighted by VIP.

In the 64-bit version the vectors are always calculated.

Workaround: 

If possible, run the 64-bit version.

Status: 

Fixed in SIMCA-Q 14.1.1.

More Information: 

There is a memory handling issue in the 32-bit versions for these particular vectors.

Date modified: Jan 20, 2017
Article type: 
Problem