tidypopgen

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R package providing a tidy grammar of population genetics, facilitating the manipulation and analysis of large datasets of biallelic single nucleotide polymorphisms (SNPs).

tidypopgen 최신버젼 다운로드

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# tidypopgen <img src="./man/figures/logo.png" align="right" width="150"/>

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[![CRAN status](https://www.r-pkg.org/badges/version/tidypopgen)](https://CRAN.R-project.org/package=tidypopgen)
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The goal of `tidypopgen` is to provide a tidy grammar of population genetics, facilitating 
the manipulation and analysis of biallelic single nucleotide 
polymorphisms (SNPs). `tidypopgen` scales to very large genetic datasets by storing 
genotypes on disk, and performing operations on them in chunks, without
ever loading all data in memory. The full
functionalities of the package are described in 
[Carter et al. (2025)](https://doi.org/10.1111/2041-210x.70204).
Please cite this paper if you use `tidypopgen` in your research.

## Installation

You can install the release version of `tidypopgen` from CRAN:
``` r
install.packages("tidypopgen")
```

You can install the latest development version directly from r-universe (recommended):
``` r
install.packages('tidypopgen', repos = c('https://evolecolgroup.r-universe.dev',
                 'https://cloud.r-project.org'))
```

Alternatively, you can install `tidypopgen`using `devtools` (but you might need to set up your development environment, 
which can be a bit more complex):
``` r
install.packages("pak")
pak::pak("EvolEcolGroup/tidypopgen@dev")
```

## Examples

There are several vignettes designed to teach you how to use `tidypopgen`.
A short introduction to the package is available in the
['introduction' vignette](https://evolecolgroup.github.io/tidypopgen/articles/tidypopgen.html).
A more detailed and technical description of the grammar of population genetics,
explaining how to manipulate individuals and loci, is available in the
['grammar' vignette](https://evolecolgroup.github.io/tidypopgen/articles/a01_overview.html).

The ['quality control' vignette](https://evolecolgroup.github.io/tidypopgen/articles/a02_qc.html)
illustrates the `tidypopgen` functions that help
running a full QC of a dataset before analysis.

The ['population genetic analysis' vignette](https://evolecolgroup.github.io/tidypopgen/articles/a03_example_clustering_and_dapc.html)
provides a fully annotated example of how to 
run various population genetics analyses with `tidypopgen`.

We also provide a ['PLINK cheatsheet'](https://evolecolgroup.github.io/tidypopgen/articles/a99_plink_cheatsheet.html)
aimed at translating common tasks performed in PLINK into `tidypopgen` commands.

There is also an article showing how manage aDNA sample that have been coded
as pseudohaploids, including how to project ancient DNA data onto a PCA fitted
to modern data and prepare data for admixtools:
['aDNA pseudohaploids' article](https://evolecolgroup.github.io/tidypopgen/articles/aDNA_pseudohaploids.html).

Finally, `tidypopgen` is fast and can handle large datasets easily. See a 
['benchmark' article](https://evolecolgroup.github.io/tidypopgen/articles/benchmark_hgdp.html) using the HGDP,
a dataset of over 1000 individuals typed for 650k SNPs. We can load the data, clean it,
run imputation, PCA and pairwise Fst among 51 populations in less than 20 seconds on a
powerful desktop (and less than a minute on a laptop).

## When something does not work

If something does not work, check the [issues on
GitHub](https://github.com/EvolEcolGroup/tidypopgen/issues) to see whether
the problem has already been reported. If not, feel free to create an
new issue. Please make sure you have updated to the latest version of
`tidypopgen` on r-universe/Github, as well as updating all other packages on your
system, and provide [a reproducible
example](https://reprex.tidyverse.org/)
for the developers to investigate the problem. Ideally, try to create a minimalistic
dataset that reproduces the error, as it will be much easier (and thus faster!)
for the developers to track down the problem.

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