NEWS

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basefun 1.2-0

• New cyclic_basis() for modelling seasonal effects.

basefun 1.1-4 (2023-05-16)

• Bernstein_basis(..., ui = c("increasing", "zerointegral") came with incorrect constraint matrix.

basefun 1.1-3 (2022-05-25)

• Bernstein_basis(..., ui = "zerointegral") came with incorrect constraint matrix.

basefun 1.1-2 (2022-01-14)

• Allow coefficients in matrix form.

basefun 1.1-1 (2021-11-12)

• Add convexity and concavity constraints to polynomials in Bernstein form.

• Add toy example demonstrating constrainted curve estimation to ?Bernstein_basis.

basefun 1.1-0 (2021-03-09)

• More infrastructure for as.basis to return a Matrix object for ordered factors.

basefun 1.0-7 (2020-02-14)

• Update citation info.

basefun 1.0-6 (2019-10-07)

• Change name of parameter in intercept\_basis to (_Intercept_); this helps to detect intercepts originating from other calls to model.matrix..

basefun 1.0-5 (2019-06-21)

• Make sure bounds[1] is positive if log_first = TRUE.

• Correct behaviour outside support when log_first = TRUE.

basefun 1.0-4 (2019-02-27)

• model.matrix has constrasts attribute where appropriate.

basefun 1.0-3 (2019-01-16)

• Bernstein(log()) is possible with new log_first argument.

• Fix > length 1 issues.

basefun 1.0-2 (2018-09-17)

• Constrain Bernstein to zero second derivative at the support when linear extrapolation shall be used. This avoids ugly bumps in the corresponding densities in mlt.

basefun 1.0-1 (2018-03-29)

• Replace rBind by rbind as requested by MM.

basefun 1.0-0 (2018-03-08)

• A paper describing version 1.0-0 of the mlt, basefun, and variables packages was accepted for publication in the Journal of Statistical Software 2018-03-05.

• Documentation updates.

basefun 0.0-40 (2018-02-23)

• nparm sometimes generated data with sanitised variable names, we don't want this to happen.

• Allow positive increasing Bernstein polynomials.

basefun 0.0-39 (2017-12-18)

• Add intercept_basis, ie an intercept only model matrix.

basefun 0.0-38 (2017-05-17)

• model.matrix.cbind_bases can now deal with lists as newdata argument (given appropriate dimensions in dim).

basefun 0.0-37 (2017-04-05)

• Deal with integer variables when sumconstr = TRUE.

• Remove unnecessary warning when sumconstr = TRUE and negative = TRUE.

basefun 0.0-36 (2017-03-01)

• Register C routines.

basefun 0.0-35 (2017-02-14)

• Fix bug in predict when newdata was a data frame.

basefun 0.0-34 (2016-12-14)

• Fix bug in predict when newdata was a list. The ordering of the resulting array may have been incorrect under rare circumstances.

basefun 0.0-33 (2016-09-13)

• Approximate Bernstein polynomial f outside its support (l, u) by a linear function f(u + x) = f(u) + f'(u) * (u - x), now also for deriv > 0 (maxderiv argument in model.matrix.Bernstein_basis. The default (linear extrapolation for deriv = 0 only) did not change.

basefun 0.0-32 (2016-05-30)

• Contraints in log_basis were potentially wrong.

basefun 0.0-31 (2016-04-25)

• log_basis has better checks for positivity of the variable to be log-transformed.

basefun 0.0-30 (2016-02-19)

• The basefun package was first published on CRAN.