Description
Handles both vector and matrices, using a flexible S4 class for automatic differentiation. The method used is forward automatic differentiation. Many functions and methods have been defined, so that in most cases, functions written without automatic differentiation in mind can be used without change.
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CRAN Check Status
11
NOTE
3
OK
Show all 14 flavors
| 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 | OK |
| r-oldrel-macos-x86_64 | OK |
| r-oldrel-windows-x86_64 | OK |
| 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 (11 non-OK)
NOTE
r-devel-linux-x86_64-debian-clang
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-linux-x86_64-debian-gcc
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-linux-x86_64-fedora-clang
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-linux-x86_64-fedora-gcc
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-macos-arm64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-windows-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
'class-2-differential.r' 'dual-apply.r' 'dual-math.r'
'dual-summary.r' 'dual-test-near-equality.r' 'dual.r' 'dualFun1.Rd'
NOTE
r-patched-linux-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-release-linux-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-release-macos-arm64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-release-macos-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-release-windows-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
'class-2-differential.r' 'dual-apply.r' 'dual-math.r'
'dual-summary.r' 'dual-test-near-equality.r' 'dual.r' 'dualFun1.Rd'
Check History
NOTE 3 OK · 11 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
NOTE
r-devel-linux-x86_64-debian-clang
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-linux-x86_64-debian-gcc
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-linux-x86_64-fedora-clang
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-linux-x86_64-fedora-gcc
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-macos-arm64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-devel-windows-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
'class-2-differential.r' 'dual-apply.r' 'dual-math.r'
'dual-summary.r' 'dual-test-near-equality.r' 'dual.r' 'dualFun1.Rd'
NOTE
r-patched-linux-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-release-linux-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-release-macos-arm64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-release-macos-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
‘class-2-differential.r’ ‘dual-apply.r’ ‘dual-math.r’
‘dual-summary.r’ ‘dual-test-near-equality.r’ ‘dual.r’ ‘dualFun1.Rd’
NOTE
r-release-windows-x86_64
DESCRIPTION meta-information
Missing dependency on R >= 4.1.0 because package code uses the pipe
|> or function shorthand \(...) syntax added in R 4.1.0.
File(s) using such syntax:
'class-2-differential.r' 'dual-apply.r' 'dual-math.r'
'dual-summary.r' 'dual-test-near-equality.r' 'dual.r' 'dualFun1.Rd'