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https://rformassspectrometry.github.io/PSMatch/

Peptide Spectrum Matching
https://rformassspectrometry.github.io/PSMatch/

mass-spectrometry peptide-spectrum-matches proteomics rstats

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Peptide Spectrum Matching

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README

        

# Handling peptide-spectrum matches

`PSMatch` is a simple package to load, process and analyse PSMs
(Peptide-Spectrum Matches). The following references are a good way to
get started with the package:

- The [package manual
package](https://rformassspectrometry.github.io/PSMatch/reference/PSMatch.html)
for a general overview of the main concepts tackled by the `PSMatch`
package.
- The [Working with PSM
data](https://rformassspectrometry.github.io/PSMatch/articles/PSM.html)
vignette to learn about the `PSM` to read and filter
peptide-spectrum matches.
- The [Understanding protein groups with adjacency
matrices](https://rformassspectrometry.github.io/PSMatch/articles/AdjacencyMatrix.html)
vignette to learn about adjaceny matrices and connected components
to explore and manage protein groups.
- The [MS2 fragment
ions](https://rformassspectrometry.github.io/PSMatch/articles/Fragments.html)
vignette to calculate and visualise MS2 fragment ions.

## Installation instructions

To install the package from Bioconductor, make sure you have the
`BiocManager` package, available from CRAN, and then run

```r
BiocManager::install("PSMatch")
```

## Credit

Code in this package is partly composed of functions ported from
[`MSnbase`](http://lgatto.github.io/MSnbase/) with the goal to (1)
make them more general and (2) integrate them with the [*R for Mass
Spectrometry*](https://github.com/rformassspectrometry)
infrastructure.