Dear Sean, thanks a a lot, I'll update the jar Thanks Marco
On Thu, Jul 21, 2011 at 1:06 PM, Sean Owen <[email protected]> wrote: > Going waaay back to the original question -- I can't reproduce this in the > latest code. > > The result ought to be "{}" since RandomAccessSparseVector will only print > entries that have a value set and are not defaulted to 0.0. And it's smart > enough in this case to remove the entry you have set since its value goes > back to 0.0. > > But, the output is "{". There's a bug in the toString() method, and I would > not be surprised if it's my fat fingers that made it. I will correct the > method. > > Sean > > On Wed, Jul 20, 2011 at 2:28 PM, marco turchi <[email protected] > >wrote: > > > Dear All, > > I have a strange behaviour when I use the method Plus for Vector. > > > > I have a RandomAccessSparseVector vector, if I add a positive number, I > got > > a new Vector where each element is the sum of the old value plus the > > positive number. While if I add a negative number, the new vector has 1 > > more > > entry: > > > > > > RandomAccessSparseVector distV = new RandomAccessSparseVector(1); > > distV.setQuick(0,1); > > double mean = 1; > > RandomAccessSparseVector app = > > (RandomAccessSparseVector)(distV.plus(mean)); > > > > the output is > > {0:2.0} > > > > if I have > > double mean = -1; > > RandomAccessSparseVector app = > > (RandomAccessSparseVector)(distV.plus(mean)); > > > > the output is > > {1:1.0,0:-1.0} > > > > For sure I'm doing something wrong. Do you have any ideas where the > problem > > is? > > > > Thanks a lot in advance > > Marco > > >
