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mvp

https://github.com/robinhankin/mvp

Science Score: 26.0%

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    CITATION.cff file
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    Scientific vocabulary similarity
    Low similarity (13.2%) to scientific vocabulary
Last synced: 10 months ago · JSON representation

Repository

Basic Info
Statistics
  • Stars: 9
  • Watchers: 1
  • Forks: 3
  • Open Issues: 13
  • Releases: 1
Created about 9 years ago · Last pushed about 1 year ago
Metadata Files
Readme Changelog Contributing Code of conduct

README.Rmd 

---
title: "Fast symbolic multivariate polynomials in R"
output:
  github_document:
    pandoc_args: --webtex
---



```{r setup, include = FALSE}
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  fig.path = "man/figures/README-",
  out.width = "100%"
)
```

# Overview 

Multivariate polynomials are interesting and useful objects.  Here I
present the `mvp` package which hopefully improves upon previous R
functionality provided by the packages `multipol`, `mpoly`, and
`spray`.  The `mvp` package follows `mpoly` in using a symbolic,
rather than numeric, representation of a multivariate polynomial; but
it offers speed advantages over `mpoly`.  `mvp` uses the excellent
print and coercion methods of the `mpoly` package.  `mvp` includes
some pleasing substitution idiom not found elsewhere; it is
theoretically comparable in speed to the `spray` package and I present
some timings in the package vignette.

The `mvp` package uses `C++`'s STL `map` class for efficiency, which
has the downside that the order of the terms, and the order of the
symbols within each term, is undefined.  This does not matter as the
mathematical value of a multivariate polynomial is unaffected by
reordering; and the print method (taken from `mpoly`) does a good job
in producing human-readable output.


# Installation

You can install the released version of `mvp` from [CRAN](https://CRAN.R-project.org) with:

```{r, message=FALSE}
# install.packages("mvp")  # uncomment this to install the package
library("mvp")
```

# The `mvp` package in use

Creating a multivariate polynomial is straightforward:

```{r}
X <- as.mvp("1 + a^2 + a*b*c^3")
X
```


and arithmetic operations work as expected:

```{r}
Y <- as.mvp("12*a^2  + b - c^2 + 4*d")
X+Y
X-3*Y
X^2
```

Substitution uses the `subs()` function:

```{r}
X
subs(X,a=1)
subs(X,a=1,b=2)
subs(X,a=1,b=2,c=3)
subs(X+Y,a="1+x^2",b="x+y",c=0)
```


# Further information

For more detail, see the package vignette

`vignette("mvp")`

Owner

  • Name: Robin Hankin
  • Login: RobinHankin
  • Kind: user
  • Location: Auckland
  • Company: AUT

pushing the boundaries of R in non-statistical contexts

GitHub Events

Total
  • Issues event: 1
  • Watch event: 1
  • Issue comment event: 2
  • Push event: 40
  • Create event: 1
Last Year
  • Issues event: 1
  • Watch event: 1
  • Issue comment event: 2
  • Push event: 40
  • Create event: 1

Committers

Last synced: over 2 years ago

All Time
  • Total Commits: 387
  • Total Committers: 3
  • Avg Commits per committer: 129.0
  • Development Distribution Score (DDS): 0.013
Past Year
  • Commits: 22
  • Committers: 1
  • Avg Commits per committer: 22.0
  • Development Distribution Score (DDS): 0.0
Top Committers
Name Email Commits
RobinHankin h****n@g****m 382
Robin Hankin R****n 4
David Kahle d****e@g****m 1

Issues and Pull Requests

Last synced: almost 2 years ago

All Time
  • Total issues: 72
  • Total pull requests: 2
  • Average time to close issues: 3 months
  • Average time to close pull requests: 2 months
  • Total issue authors: 4
  • Total pull request authors: 2
  • Average comments per issue: 1.14
  • Average comments per pull request: 2.5
  • Merged pull requests: 1
  • Bot issues: 0
  • Bot pull requests: 0
Past Year
  • Issues: 9
  • Pull requests: 0
  • Average time to close issues: about 1 month
  • Average time to close pull requests: N/A
  • Issue authors: 1
  • Pull request authors: 0
  • Average comments per issue: 0.11
  • Average comments per pull request: 0
  • Merged pull requests: 0
  • Bot issues: 0
  • Bot pull requests: 0
View more stats
Top Authors
Issue Authors
  • RobinHankin (67)
  • stla (2)
  • michaelgordy (1)
  • briankleiboeker (1)
Pull Request Authors
  • dkahle (1)
  • stla (1)
Top Labels
Issue Labels
enhancement (6) bug (5) infelicity (1) cool example (1) documentation (1)
Pull Request Labels

Packages

  • Total packages: 1
  • Total downloads:
    • cran 396 last-month
  • Total docker downloads: 42,005
  • Total dependent packages: 3
  • Total dependent repositories: 4
  • Total versions: 9
  • Total maintainers: 1
cran.r-project.org: mvp

Fast Symbolic Multivariate Polynomials

  • Versions: 9
  • Dependent Packages: 3
  • Dependent Repositories: 4
  • Downloads: 396 Last month
  • Docker Downloads: 42,005
Rankings
Docker downloads count: 0.6%
Dependent packages count: 10.9%
Forks count: 14.1%
Dependent repos count: 14.5%
Average: 14.8%
Stargazers count: 18.3%
Downloads: 30.3%
Maintainers (1)
hankin.robin@gmail.com
Last synced: 11 months ago

Dependencies

DESCRIPTION cran
  • magrittr * depends
  • methods * depends
  • mpoly >= 1.1.0 depends
  • Rcpp >= 1.0 imports
  • digest * imports
  • disordR >= 0.0 imports
  • magic * imports
  • numbers * imports
  • partitions * imports
  • knitr * suggests
  • microbenchmark * suggests
  • rmarkdown * suggests
  • spray * suggests
  • testthat * suggests
.github/workflows/check.yaml actions
.github/workflows/pkgdown.yaml actions
  • JamesIves/github-pages-deploy-action v4.5.0 composite
  • actions/checkout v4 composite
  • r-lib/actions/setup-pandoc v2 composite
  • r-lib/actions/setup-r v2 composite
  • r-lib/actions/setup-r-dependencies v2 composite
.github/workflows/simple.yaml actions
  • actions/checkout v4.1.1 composite
  • actions/upload-artifact v4 composite
  • r-lib/actions/setup-r v2 composite
  • r-lib/actions/setup-r-dependencies v2 composite
  • user-workshop-cicd/action-example main composite