bl_corr

<code>bl_corr</code> performs baseline correction of the intensity values.

Provides complete detailed preprocessing of two-dimensional gas chromatogram (GCxGC) samples. Baseline correction, smoothing, peak detection, and peak alignment. Also provided are some analysis functions, such as finding extracted ion chromatograms, finding mass spectral data, targeted analysis, and nontargeted analysis with either the 'National Institute of Standards and Technology Mass Spectral Library' or with the mass data. There are also several visualization methods provided for each step of the preprocessing and analysis.

Stephanie Gamble

gcxgclab

GCxGC Preprocessing and Analysis

Mannion Joseph

Granger Caroline

Battelle Savannah River Alliance 

NNSA, US DOE 

bl_corr function

<dl><dt>data</dt>
<dd>a list object. Data extracted from a cdf file,
ideally the output from extract_data().</dd>
<dt>gamma</dt>
<dd>a float object. Correction factor between 0 and 1. 0
results in almost no values being subtracted to the baseline, 1 results in
almost everything except the peaks to be subtracted to the baseline. Default
is 0.5.</dd>
<dt>subtract</dt>
<dd>a list object. Data extracted from a cdf file,
ideally the output from extract_data().</dd></dl>

Arguments

Baseline correction — bl_corr

<dl>

<dt>data</dt>
<dd>a list object. Data extracted from a cdf file,
ideally the output from extract_data().</dd>


<dt>gamma</dt>
<dd>a float object. Correction factor between 0 and 1. 0
results in almost no values being subtracted to the baseline, 1 results in
almost everything except the peaks to be subtracted to the baseline. Default
is 0.5.</dd>


<dt>subtract</dt>
<dd>a list object. Data extracted from a cdf file,
ideally the output from extract_data().</dd>

</dl>

bl_corr: Baseline correction

Description

Usage

Value

Arguments

Details

Examples