| Re: [eigen] How to squeeze in place a vector matrix |
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- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] How to squeeze in place a vector matrix
- From: Hauke Heibel <hauke.heibel@xxxxxxxxxxxxxx>
- Date: Wed, 25 Aug 2010 17:29:37 +0200
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On Wed, Aug 25, 2010 at 5:21 PM, Benoit Jacob <jacob.benoit.1@xxxxxxxxx> wrote:
> Use conservativeResize().
IIRC, conservative resize copies. So there is pretty much no reason in
avoiding the aliasing since you will anyways introduce a temporary -
if not more, when "punching out" multiple rows/cols.
I would suggest to write a new function that creates a single target
temporary and assembles the blocks between the rows/cols you want to
kick out. It might be a little bit ugly regarding the indexing but is
probably the most efficient you can do for now.
- Hauke