RegressionFactory
Expander Functions for Generating Full Gradient and Hessian from Single-Slot and Multi-Slot Base Distributions
v0.7.4
·
Oct 25, 2020
·
GPL (>= 2)
Description
The expander functions rely on the mathematics developed for the Hessian-definiteness invariance theorem for linear projection transformations of variables, described in authors' paper, to generate the full, high-dimensional gradient and Hessian from the lower-dimensional derivative objects. This greatly relieves the computational burden of generating the regression-function derivatives, which in turn can be fed into any optimization routine that utilizes such derivatives. The theorem guarantees that Hessian definiteness is preserved, meaning that reasoning about this property can be performed in the low-dimensional space of the base distribution. This is often a much easier task than its equivalent in the full, high-dimensional space. Definiteness of Hessian can be useful in selecting optimization/sampling algorithms such as Newton-Raphson optimization or its sampling equivalent, the Stochastic Newton Sampler. Finally, in addition to being a computational tool, the regression expansion framework is of conceptual value by offering new opportunities to generate novel regression problems.
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| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | NOTE |
| r-devel-linux-x86_64-debian-gcc | NOTE |
| r-devel-linux-x86_64-fedora-clang | NOTE |
| r-devel-linux-x86_64-fedora-gcc | NOTE |
| r-devel-macos-arm64 | NOTE |
| r-devel-windows-x86_64 | NOTE |
| r-oldrel-macos-arm64 | NOTE |
| r-oldrel-macos-x86_64 | NOTE |
| r-oldrel-windows-x86_64 | NOTE |
| r-patched-linux-x86_64 | NOTE |
| r-release-linux-x86_64 | NOTE |
| r-release-macos-arm64 | NOTE |
| r-release-macos-x86_64 | NOTE |
| r-release-windows-x86_64 | NOTE |
Check details (16 non-OK)
NOTE
r-devel-linux-x86_64-debian-clang
CRAN incoming feasibility
Maintainer: ‘Alireza S. Mahani <alireza.s.mahani@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = c("Alireza", "S."),
family = "Mahani",
role = c("aut", "cre"),
email = "alireza.s.mahani@gmail.com"),
person(given = c("Mansour", "T.A."),
family = "Sharabiani",
role = "aut"))
as necessary.
NOTE
r-devel-linux-x86_64-debian-clang
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-devel-linux-x86_64-debian-gcc
CRAN incoming feasibility
Maintainer: ‘Alireza S. Mahani <alireza.s.mahani@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = c("Alireza", "S."),
family = "Mahani",
role = c("aut", "cre"),
email = "alireza.s.mahani@gmail.com"),
person(given = c("Mansour", "T.A."),
family = "Sharabiani",
role = "aut"))
as necessary.
NOTE
r-devel-linux-x86_64-debian-gcc
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-devel-linux-x86_64-fedora-clang
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-devel-linux-x86_64-fedora-gcc
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-devel-macos-arm64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-devel-windows-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-oldrel-macos-arm64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-oldrel-macos-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-oldrel-windows-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-patched-linux-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-release-linux-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-release-macos-arm64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-release-macos-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
NOTE
r-release-windows-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that are dependent on the response variable only. This is done for computational efficiency. Therefore, these functions cannot be used to obtain the absolute values of log-likelihood functions but only in the context of optimization and/or sampling. Users can write thin wrappers around these functions to add the constant terms to the function value. (Derivatives do not need correction. For binomial family, all factorial terms are ignored since they only depend on \code{n} and {y}.)
| ^
Check History
NOTE 0 OK · 14 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
NOTE
r-devel-linux-x86_64-debian-clang
CRAN incoming feasibility
Maintainer: ‘Alireza S. Mahani <alireza.s.mahani@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = c("Alireza", "S."),
family = "Mahani",
role = c("aut", "cre"),
email = "alireza.s.mahani@gmail.com"),
person(given = c("Mansour", "T.A."),
family = "Sharabiani",
role = "aut"))
as necessary.
NOTE
r-devel-linux-x86_64-debian-gcc
CRAN incoming feasibility
Maintainer: ‘Alireza S. Mahani <alireza.s.mahani@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = c("Alireza", "S."),
family = "Mahani",
role = c("aut", "cre"),
email = "alireza.s.mahani@gmail.com"),
person(given = c("Mansour", "T.A."),
family = "Sharabiani",
role = "aut"))
as necessary.
NOTE
r-devel-linux-x86_64-fedora-clang
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-devel-linux-x86_64-fedora-gcc
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-devel-macos-arm64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-devel-windows-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-patched-linux-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-release-linux-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-release-macos-arm64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-release-macos-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-release-windows-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-oldrel-macos-arm64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-oldrel-macos-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^
NOTE
r-oldrel-windows-x86_64
Rd files
checkRd: (-1) fbase1.binomial.Rd:32: Lost braces; missing escapes or markup?
32 | In all base log-likelihood functions, we have dropped any additive terms that are independent of the distribution parameter, e.g. constant terms or those terms that
...[truncated]...
^