https://community.jmp.com/t5/Discussions/Normalize-data-Columns-for-PCA/m-p/396783#M64750 <P>The default analysis for Analyze &gt; Multivariate Methods &gt; Principal Components is PCs on correlations. That means that the centering and scaling happens automatically. Using the option to compute PCs on covariances would not center or scale the variables.</P> Tue, 29 Jun 2021 14:16:48 GMT Mark_Bailey 2021-06-29T14:16:48Z https://community.jmp.com/t5/Discussions/Normalize-data-Columns-for-PCA/m-p/396768#M64747 <P>I am being asked to normalize sensor data with respect to one of my columns before I run a PCA. It was mentioned that there was a checkbox or something to do this in JMP. Is that true? Or do I need to do it manually column by column.&nbsp;</P><P>&nbsp;</P><P>Any help would be great!&nbsp;</P> Sat, 10 Jun 2023 23:32:46 GMT https://community.jmp.com/t5/Discussions/Normalize-data-Columns-for-PCA/m-p/396768#M64747 jmpnewbie1 2023-06-10T23:32:46Z https://community.jmp.com/t5/Discussions/Normalize-data-Columns-for-PCA/m-p/396783#M64750 <P>The default analysis for Analyze &gt; Multivariate Methods &gt; Principal Components is PCs on correlations. That means that the centering and scaling happens automatically. Using the option to compute PCs on covariances would not center or scale the variables.</P> Tue, 29 Jun 2021 14:16:48 GMT https://community.jmp.com/t5/Discussions/Normalize-data-Columns-for-PCA/m-p/396783#M64750 Mark_Bailey 2021-06-29T14:16:48Z