Plsnipal: Difference between revisions

Revision as of 21:03, 8 October 2008

Calculate a single latent variable for partial least squares regression (PLS).

[p,q,w,t,u] = plsnipal(x,y)

PLSNIPAL is called by the routine pls to calculate each latent variable in a partial least squares regression.

x = x-block input data (for first PLS latent variable), or x-block residuals (for subsequent latent variables)
y = y-block input data (for first PLS latent variable), or y-block residuals (for subsequent latent variables)

@@ Line 1: / Line 1: @@
 ===Purpose===
-Calculate single latent variables for partial least squares regression.
+Calculate a single latent variable for partial least squares regression (PLS).
 ===Synopsis===
@@ Line 10: / Line 9: @@
 ===Description===
-PLSNIPAL is called by the routine pls to calculate each latent variable in a partial least squares regression.
+PLSNIPAL is called by the routine [[pls]] to calculate each latent variable in a partial least squares regression.
+====Inputs====
+* '''x''' = x-block input data (for first PLS latent variable), or x-block residuals (for subsequent latent variables)
+* '''y''' = y-block input data (for first PLS latent variable), or y-block residuals (for subsequent latent variables)
-Inputs x and y are either the x-block and y-block for calculation of the first latent variable, or the x-block and y-block residuals for calculation of subsequent latent variables.
+====Outputs====
-The outputs are p the x-block latent variable loadings, q the y-block variable loadings, w the x-block latent variable weights, t the x-block latent variable scores, and u the y-block latent variable scores.
+* '''p''' = x-block latent variable loadings
+* '''q''' = y-block latent variable loadings
+* '''w''' = x-block latent variable weights
+* '''t''' = x-block latent variable scores
+* '''u''' = y-block latent variable scores
 ===See Also===
 [[nippls]], [[pls]], [[analysis]], [[simpls]]