sharpData

1.4

Data Sharpening

0packages depend

2.5Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by W.J. BraunFirst published 2019-08-024 releasesCRAN page ↗

Functions and data sets inspired by data sharpening - data perturbation to achieve improved performance in nonparametric estimation, as described in Choi, E., Hall, P. and Rousson, V. (2000). Capabilities for enhanced local linear regression function and derivative estimation are included, as well as an asymptotically correct iterated data sharpening estimator for any degree of local polynomial regression estimation. A cross-validation-based bandwidth selector is included which, in concert with the iterated sharpener, will often provide superior performance, according to a median integrated squared error criterion. Sample data sets are provided to illustrate function usage.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("sharpData", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-sharpdata

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-sharpData

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-sharpData

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 57 s · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

None

Vignettes

README

Dependencies · direct

Check history

NOTE2026-06-08
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-06-07
11 OK · 1 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

2.5K

CRAN downloads in the past year

Rank #16,966 · ~7/day · ~211/mo

Releases R versions

Daily download trend is not available in this view yet.

25330 days

67590 days

2.5K1 year

Compare downloads with other packages →

Also on399 r2u7 autocran

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (4)

R >= 3.5.0KernSmoothstatsquadprog

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

Rd 268 (55%)R 95 (20%)Fortran 82 (17%)C 38 (8%)

Code characteristics

Cyclomatic complexity: 2.0 median / 5 max
Documented parameters: 100%

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

8 5 exported

Complexity

2.8 avg / 5 max

Call network

8 nodes / 4 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Call graph

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (0)

Author records are not tracked yet for this package.

Listed in earlier versions (2)

W.J. Braun

no longer listed · 1.1 to 1.3

W. John Braun

no longer listed · 1.4

Package Timeline

4 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.4Latest
2021-03-30 · current release · diff ↗
1.3
2021-01-16 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.2
2019-08-19 · diff ↗
1.1
2019-08-02
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-08-02
Total releases: 4 / 7 yrs
License: Unlimited OSI
Minimum R: ≥ 3.5.0
Bundled data: 4.0 KB / 3 files
Download size: 13 KB
Installed size: not tracked yet
With dependencies: not tracked yet