getpn

Merge positive and negative mode data

Gas/Liquid Chromatography-Mass Spectrometer(GC/LC-MS) Data Analysis for Environmental Science. This package covered topics such molecular isotope ratio, matrix effects and Short-Chain Chlorinated Paraffins analysis etc. in environmental analysis.

Miao YU

enviGCMS

GC/LC-MS Data Analysis for Environmental Science

Thanh Wang

getpn function

<dl><dt>pos</dt>
<dd>a list with mzrt profile collected from positive mode. The sample order should match the negative mode.</dd>
<dt>neg</dt>
<dd>a list with mzrt profile collected from negative mode.The sample order should match the positive mode.</dd>
<dt>ppm</dt>
<dd>pmd mass accuracy, default 5</dd>
<dt>pmd</dt>
<dd>numeric or numeric vector</dd>
<dt>digits</dt>
<dd>mass or mass to charge ratio accuracy for pmd, default 2</dd>
<dt>cutoff</dt>
<dd>correlation coefficients, default 0.9</dd></dl>

Arguments

Merge positive and negative mode data — getpn

<dl>

<dt>pos</dt>
<dd>a list with mzrt profile collected from positive mode. The sample order should match the negative mode.</dd>


<dt>neg</dt>
<dd>a list with mzrt profile collected from negative mode.The sample order should match the positive mode.</dd>


<dt>ppm</dt>
<dd>pmd mass accuracy, default 5</dd>


<dt>pmd</dt>
<dd>numeric or numeric vector</dd>


<dt>digits</dt>
<dd>mass or mass to charge ratio accuracy for pmd, default 2</dd>


<dt>cutoff</dt>
<dd>correlation coefficients, default 0.9</dd>

</dl>

getpn: Merge positive and negative mode data

Description

Usage

Value

Arguments