Displaying 2 results from an estimated 2 matches for "apportionment".
2007 Jun 11
1
Looking for R-code for non-negative matrix factorization in the presence of Gaussian or Poisson noise
Hi all,
Has any of you implemented code for non-negative matrix factorization to solve
Y=T P' +E; dim(Y)=n,p ; dim(T)=n,nc; dim (P)=(p,nc); dim(E)=n,p
where T and P must be non-negative and E either Gaussian or Poisson noise.
I'm looking for two variants:
1. Easy (I think), T is known (that is we just want to solve the general inverse problem)
2. Harder (?), T is unknown (under some
2010 Feb 11
1
Rounding multinomial proportions
...South America, East Timor, Israel, Japan, and Turkey.
Modified Sainte-Lagu?? is used in Norway and Sweden.
Sainte-Lagu?? is used in Bosnia and Herzegovina, Kosovo, Latvia, and
New Zealand.
}
\author{Arni Magnusson.}
\references{
Balinski, M. and V. Ram??rez. 1999. Parametric methods of
apportionment, rounding and production. \emph{Mathematical Social
Sciences} \bold{37}:107--122.
Diaconis, P. and D. Freedman. 1979. On rounding percentages.
\emph{Journal of the American Statistical Association}
\bold{74}:359--364.
Mosteller, F., C. Youtz, and D. Zahn. 1967. The distribution of sum...