octave-bug-tracker
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Octave-bug-tracker] [bug #34352] sprand/sprandn density argument is not


From: Jordi Gutiérrez Hermoso
Subject: [Octave-bug-tracker] [bug #34352] sprand/sprandn density argument is not very accurate
Date: Fri, 23 Sep 2011 07:01:56 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20110109 Spacesloth/3.6.13

Update of bug #34352 (project octave):

                  Status:                    None => Fixed                  
             Open/Closed:                    Open => Closed                 

    _______________________________________________________

Follow-up Comment #4:

Okay, I pushed it: 

http://hg.savannah.gnu.org/hgweb/octave/rev/5976ba269538

I note that this implementation would make it quite easy to let d be larger
than 1 and thus be interpreted as the exact desired number of nonzero entries
instead of the density percentage. I was tempted to make that change, but
wasn't sure about it.

However, a more pressing issues seems to be to implement the algorithm that
allows specifyiing the condition number or singular values of the resulting
sparse matrix. I don't even know what this algorithm might be. Matlab hints at
"rank 1 updates", but I don't immediately see how to do this.

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?34352>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/




reply via email to

[Prev in Thread] Current Thread [Next in Thread]