toy_mgf

Data was generated with <code>metamorphr::read_mgf()</code> and can be reproduced with
This tibble can be reproduced with <code>metamorphr::read_mgf(system.file("extdata", "toy_mgf.mgf", package = "metamorphr"))</code>.

datasets

Facilitate tasks typically encountered during metabolomics data analysis including data import, filtering, missing value imputation (Stacklies et al. (2007) <doi:10.1093/bioinformatics/btm069>, Stekhoven et al. (2012) <doi:10.1093/bioinformatics/btr597>, Tibshirani et al. (2017) <doi:10.18129/B9.BIOC.IMPUTE>, Troyanskaya et al. (2001) <doi:10.1093/bioinformatics/17.6.520>), normalization (Bolstad et al. (2003) <doi:10.1093/bioinformatics/19.2.185>, Dieterle et al. (2006) <doi:10.1021/ac051632c>, Zhao et al. (2020) <doi:10.1038/s41598-020-72664-6>) transformation, centering and scaling (Van Den Berg et al. (2006) <doi:10.1186/1471-2164-7-142>) as well as statistical tests and plotting. 'metamorphr' introduces a tidy (Wickham et al. (2019) <doi:10.21105/joss.01686>) format for metabolomics data and is designed to make it easier to build elaborate analysis workflows and to integrate them with 'tidyverse' packages including 'dplyr' and 'ggplot2'.

Yannik Schermer

metamorphr

Tidy and Streamlined Metabolomics Data Workflows

toy_mgf function

<div class="section" id="toy-mgf">
<h3><code>toy_mgf</code></h3>
A data frame with 3 rows and 5 columns:<dl>
<dt>VARIABLEONE</dt>
<dd>A fictional variable.</dd><dt>VARIABLETWO</dt>
<dd>A fictional variable.</dd><dt>VARIABLETHREE</dt>
<dd>A fictional variable.</dd><dt>PEPMASS</dt>
<dd>The precursor ion m/z.</dd><dt>MSn</dt>
<dd>A list column containing MSn spectra.</dd>...</dl></div>

Format

A small toy data set containing MSn spectra — toy_mgf

<div class='section' id='toy-mgf'>
<h3><code>toy_mgf</code></h3>


A data frame with 3 rows and 5 columns:<dl>
<dt>VARIABLEONE</dt>
<dd>A fictional variable.</dd>

<dt>VARIABLETWO</dt>
<dd>A fictional variable.</dd>

<dt>VARIABLETHREE</dt>
<dd>A fictional variable.</dd>

<dt>PEPMASS</dt>
<dd>The precursor ion m/z.</dd>

<dt>MSn</dt>
<dd>A list column containing MSn spectra.</dd>

...

</dl>

</div>

toy_mgf: A small toy data set containing MSn spectra

Description

Usage

Arguments

Format

`toy_mgf`