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Input data standardisation

Posted: Mon Nov 21, 2011 2:11 pm
by sunilsahadev
Hi,
Before we input the data should we standardise it or mean center it especially when we have some moderating variables to check

Posted: Tue Nov 22, 2011 11:06 am
by Diogenes
Hi,

It is not necessary,
The first step in the algorithm PLS is the standardization, and when you will run the moderation analysis, the SmartPLS has options to mean centered, standardized etc. See release.php

Best regards,

Bido

Data Standardization

Posted: Thu Dec 15, 2011 4:50 pm
by Mrs Tourky
Hi All,

Would you please let me know how to do data standardization , as a first step in PLS? Please note, I dont have moderating variables

Thanks
Marwa

Posted: Fri Dec 16, 2011 10:14 am
by Diogenes
Hi,
You do not need to do this, the algorithm PLS already do it.

Z = (Xi - Xbar)/s.d.

Best regards,

Bido

Posted: Fri Dec 16, 2011 12:28 pm
by Mrs Tourky
Many thanks Professor Bido for your reply. I really appreciate your time and help.

Very best regards,
Marwa