Re: orthogonal matrices

[Daniel_J_Celta@fpl.com]

Martyn
the choleski decomposition "chol(x, pivot = F)" provides an upper
triangular y, such that  t(y)  %*%  y  =  x
Hope it helps

Daniel J Celta
Project Valuation - Special Valuations
561 691 7653


                                                                                
                                                              
                      "Martyn Colins"                                           
                                                              
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                      07/27/2006 09:15 AM                                       
                                                              
                                                                                
                                                              
                                                                                
                                                              




Dear members,

Is it possible in S-Plus to decompose a matrix A such that

A= X%*%t(X)

where X is a square matrix of row-echelon form? I have the matrix A and
want to compute the X.

Thanks for any help in advance.

Martyn


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