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Hi, can someone please tell me how do you preform mean centring on my spectral data as a pre-treatment before PCA analysis ? Where do I find this option in XLSTAT ? Im knew to XLSTAT and cannot find where to preform the pre treatment before PCA.
Just run your PCA then apply your k-means cluster analysis on observation coordinates on the PCA :)
PCA automatically centers the data prior to the analysis. If you want to do this manually, go to preparing data / variables transformation, select your data & click on “other”. Then go to the Transformations tab and select “center”.
Hi I want to analyze data in pca and than k cluster analysis. How can I?
Hi how can I run eigenvalue using my quantitative data with ten rows and eleven columns? Please I am new here I tried but I don't know how prepare the figures before running the PCA eigenvalue.
This tutorial will help you set up a PCA properly: https://help.xlstat.com/customer/en/portal/articles/2062222-running-a-principal-component-analysis-pca-with-xlstat?b_id=9283
It also explains what an eigenvalue is.
Hi, can someone please tell me how can we prepare data for PCA analysis ? Where do I find this option in XLSTAT ? Im knew to XLSTAT and cannot find where i can prepare before PCA.
The PCA function is located in the Analyzing data XLSTAT menu.
Here is a tutorial that explains how to launch XLSTAT from the XLSTAT menu, how to select data and configure the dialog box. A demo data set is also available.
How to prepare data for MFA (Multiple factor Analysis)
Please find our MFA tutorial here which explains how to use a data set for an MFA analysis. You can download the demo data from the tutorial.
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