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PCA

By Ross | Jan 14, 2017 08:29PM CET

Hi,

I'm using PCA for dimensionality reduction purposes.
I have a large data set of 5,000 models / columns to be reduced to 5-10 models / columns.

I have watched various instructional youtube videos on XLSTAT PCA and followed the user guide however I fail to understand how to reduce the data to the 5-10 models I require.

Please advise

Ross

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By Jean Paul | Jan 16, 2017 11:20AM CET | XLSTAT Agent

Hello,

Each dimension that arises from PCA does not necessarily represent one single column in your original dataset. PCA dimensions carry information provided by bunches of real variables.
I suggest that you watch the recording on exploratory statistics that can be found here:
https://www.xlstat.com/en/news/xlstat-webinar-recordings-2016-are-online

Jean Paul

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