Re: [eigen] modifying the colPivotQR function

[marco stamazza <giunghi@xxxxxxxxx>]

Great! thanks a lot. Marco

On 28 January 2016 at 18:46, Gael Guennebaud <gael.guennebaud@xxxxxxxxx> wrote:

That should be fairly easy, the respective code is there:

https://bitbucket.org/eigen/eigen/src/451f6085cbd3000af8709a43860b359ae09c30e4/Eigen/src/QR/ColPivHouseholderQR.h?at=default&fileviewer=file-view-default#ColPivHouseholderQR.h-488

just replace the first lines searching for the column with maximal L2 norm, by your own strategy.

gael

On Thu, Jan 28, 2016 at 12:23 PM, marco stamazza <giunghi@xxxxxxxxx> wrote:

Hello,

I am a newby, so please put up with me.

I need to run a modified QR with a particular Pivoting strategy.

I think that the best way is to modify an existing routine rather than write a new one from scratch. 

Since I am already using Eigen, I want to try with ColPivHouseholderQR.

Do you think it would be "simple" to do? That is the function is readable enough? 

Where do i get the actual code?

Thanks in advance, Marco

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"Anyone who lives within their means suffers from a lack of imagination."

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"Anyone who lives within their means suffers from a lack of imagination."