How to set SVD options?
- To: mathgroup at smc.vnet.net
- Subject: [mg74684] How to set SVD options?
- From: renormalize at hotmail.com
- Date: Sat, 31 Mar 2007 01:31:53 -0500 (EST)
My attempt to apply SingularValueList[] to a large matrix in Mathematica 5.2 generates the message: SingularValueList::maxit2: Maximum number of iterations, 1000, has been reached by the Arnoldi algorithm without convergence to the specified tolerance, but the current best computed value has been returned. You can use method options with Method->{Arnoldi, opts} to increase the basis size or the maximum number of iterations, reduce the tolerance, or use an estimate as a shift, any of which may help. The only option I can find listed in the online documentation for SingularValueList and SingularValueDecomposition is the Tolerance value for chopping small singular values to zero. Where can I find Mathematica documentation detailing how and why to set SVD/Arnoldi options like: convergence tolerance, maximum iterations, basis size, shift, etc.? Thanks, Ron