Tsqqmtx and File:T1267-f6.jpg: Difference between pages

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imported>Jeremy
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imported>Benjamin
(Working with False-color images, figure 6.)
 
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===Purpose===
Working with False-color images, figure 6.
 
Calculates matrix for T^2+Q contributions for PCA and MPCA.
 
===Synopsis===
 
:[tsqqmat,tsqqs] = tsqqmtx(x,model,wt)
 
===Description===
 
====Inputs====
* '''x''' = data matrix [class double or dataset]
* '''model''' = PCA or MPCA model standard model struture (see PCA).
====Optional Inputs====
* '''wt''' = {sqrt((M-K-1)/(M-1))}, 0<=wt<=1 scalar weighting for contributions 0<wt<1 gives combined T^2 and Q statistics where M is the number of calibration samples and K is the number of PCs.
::wt = 1 gives T^2 and T^2 contributions
::wt = 0 gives standarized Q residuals
====Outputs====
* '''tsqqs''' = combined Hotelling's T^2 + Q residual
* '''tsqqmat''' = matrix of individual variable contributions such that
::<tt>tsqqs(i) = tsqqmat(i,:)*tsqqmat(i,:)';</tt>
 
===See Also===
 
[[datahat]], [[pca]], [[pcr]], [[pls]], [[tsqmtx]]

Revision as of 14:21, 12 May 2017

Working with False-color images, figure 6.