topic Re: Transformation vs standardization in SAS Data Science

Transformation vs standardization

frupaul — Sun, 18 Jun 2017 07:31:22 GMT

Hello,

Can someone help me answer these questions regarding standardization and transformation?

- Does standardization handle the problem of extreme observations?

- Can Standardization be done instead of transformation?

- Will it be right to do variable transformations and then variable standardization in the same analysis?

Thanks,

Re: Transformation vs standardization

PaigeMiller — Sun, 18 Jun 2017 11:27:38 GMT

No
No
Yes if you want to do both

Standardization is usually done to provide better mathematical properties in some algorithms, or to put variables on the same scale if they were on very different scales unstandardized. Transformation changes the distribution of the data.

Re: Transformation vs standardization

WendyCzika — Mon, 19 Jun 2017 13:05:04 GMT

This post about standardization might be helpful: https://communities.sas.com/t5/SAS-Communities-Library/To-standardize-data-or-not-to-standardize-data-that-is-the/ta-p/361726