To do
o 1-sided model expressions -- easy to do, but needs to be done.
o Origin of NaN's in bounded examples. Can they be avoided?
o Handling of NaN in Jacfun
o Fixup inst/examples/. Maybe create tests.
o Option for numerical Jacobian -- control numJac = TRUE?, with
routine in nlmrt.R ?? elsewhere.
o Way of using a "gradient" attribute when the model formula is
specified like
y ~ SpecialFn(xx, zz)
which would allow functions not differentiable by deriv()
o Weighted least squares example, especially in nlxb.
o Issue when npar = 1
Changes in nlmrt version 2016.3.2
o An example from Gabor Grothendieck with 0 sumsquares
raised an error in summary.nlmrt() due to crossprod()
returning a 1x1 matrix rather than a scalar. Fixed with
the use of as.numeric().
o NAMESPACE exported summary, print and coef methods replaced
with S3method() statements
o DESCRIPTION updated to current standards
o Minor tweak in vignette (encoding line)
Changes in nlmrt version 2014-7.16
o These were, unfortunately, not recorded here
Changes in nlmrt version 2013-8.26
o Relative offset convergence test (not exactly as in nls())
residual and jacobian in summary & print methods
o coef() method in nlmrt.R so names carried through
o summary() and print() cleanup
o partial and minor documentation improvement
Changes in nlmrt version 2013-8.10
o fix line length issue in examples
Changes in nlmrt version 2013-7.9
o Added control list elements to .Rd files for nlxb and nlfb,
with reference in wrapnls.
o Put in a test for very small sum of squares in nlfb and nlxb.
Changes in nlmrt version 2013-3.16
o Result element coeffs changed to coefficients.
This alters wrapnls.R code also.
Changes in nlmrt version 2012-9.03
o More features in summary().
Changes in nlmrt version 2012-9.03
o summary() for output from different functions.
Should display constraints if possible as per JNMWS codes.
Warnings / Notes fixed re: dependencies in vignette, methods.
o Sort out display in vignette
Note warning "unstated dependencies in vignette"
Changes in nlmrt version 2012-8.12
o Bounds and masks examples in nlmrt-vignette.
Changes in nlmrt version 2012-8.04
o Vignette nlmrt-vignette updated.
o Functions to convert expression to residual, Jacobian,
sum of squares and gradient functions (for use with optimx
or nlmrt:nlfb or minpack.lm:nls.lm
o The examples in ./inst/examples/ are calling routines that
have been renamed. These have, I believe, been fixed.
o nlfb() needs an explicit Jacobian function and needs a way
to compute numerical Jacobian if omitted. Fixed, I believe.
Changes in nlmrt version 2012-6.01
o Removed diagnostic printout of bdmsk in nlfb
Changes in nlmrt version 2012-4.15
o Added nlfb to allow functions for residual and Jacobian.
These are developed from the expression for the residuals as
a model in nlxb.
o Bounds now in wrapnls.
o Note misleading trace output in nls() runs with bounds.