Regression Models for Monozygotic Twin Data
Linear and logistic regression models for quantitative genetic analysis of data from monozygotic twins.

Port of the 'Scilab' 'n1qn1' Module for Unconstrained BFGS
Optimization
c(person("Matthew", "Fidler", role=c("aut","cre"), email= "matthew.fidler@gmail.com"),
person("Wenping", "Wang", role = "aut", email = "wwang8198@gmail.com"),
person("Claude","Lemarechal", role=c("aut","ctb")),
person("Joseph", "Bonnans", role=c("ctb")),
person("Jean-Charles", "Gilbert", role=c("ctb")),
person("Claudia","Sagastizabal",role=c("ctb")),
person("Stephen L.", "Campbell,", role=c("ctb")),
person("Jean-Philippe", "Chancelier", role=c("ctb")),
person("Ramine", "Nikoukhah", role=c("ctb")),
person("Dirk", "Eddelbuettel", role="ctb"),
person("Bruno", "Jofret", role="ctb"),
person("INRIA", role="cph")
)
Provides 'Scilab' 'n1qn1', or Quasi-Newton BFGS
"qn" without constraints.  This takes more memory than traditional L-BFGS.  This
routine is useful since it allows prespecification of a Hessian.  If the Hessian is near enough the
truth in optimization it can speed up the optimization problem. The algorithm is described in the
'Scilab' optimization documentation located at
<http://www.scilab.org/content/download/250/1714/file/optimization_in_scilab.pdf>.
Matthew Fidler [aut, cre],
Wenping Wang [aut],
Claude Lemarechal [aut, ctb],
Joseph Bonnans [ctb],
Jean-Charles Gilbert [ctb],
Claudia Sagastizabal [ctb],
Stephen L. Campbell, [ctb],
Jean-Philippe Chancelier [ctb],
Ramine Nikoukhah [ctb],
Dirk Eddelbuettel [ctb],
Bruno Jofret [ctb],
INRIA [cph]

Provides 'Scilab' 'n1qn1'. This takes more memory than traditional L-BFGS.  The n1qn1 routine is useful since it allows prespecification of a Hessian.
If the Hessian is near enough the truth in optimization it can speed up the optimization problem. The algorithm is described in the
'Scilab' optimization documentation located at
<https://www.scilab.org/sites/default/files/optimization_in_scilab.pdf>. This version uses manually modified code from 'f2c' to make this a C only binary.