eem_peaks

Provides various tools for preprocessing Emission-Excitation-Matrix (EEM) for Parallel Factor Analysis (PARAFAC). Different
methods are also provided to calculate common metrics such as humification index and fluorescence index.

Philippe Massicotte

eemR

Tools for Pre-Processing Emission-Excitation-Matrix (EEM)
Fluorescence Data

eem_peaks function

<dl><dt>eem</dt>
<dd>An object of class <code>eemlist</code>.</dd>
<dt>ex</dt>
<dd>A numeric vector with excitation wavelengths.</dd>
<dt>em</dt>
<dd>A numeric vector with emission wavelengths.</dd>
<dt>verbose</dt>
<dd>Logical determining if additional messages should be printed.</dd></dl>

Arguments

Different excitation and emission wavelengths are often used to measure
 EEMs. Hence, it is possible to have mismatchs between measured wavelengths
 and wavelengths used to calculate specific metrics. In these
 circumstances, EEMs are interpolated using the
 <code>interp2</code> function from the <code>parcma</code> library. A
 message warning the user will be prompted if data interpolation is
 performed.

Interpolation

Extract fluorescence peaks — eem_peaks

<dl>

<dt>eem</dt>
<dd>An object of class <code>eemlist</code>.</dd>


<dt>ex</dt>
<dd>A numeric vector with excitation wavelengths.</dd>


<dt>em</dt>
<dd>A numeric vector with emission wavelengths.</dd>


<dt>verbose</dt>
<dd>Logical determining if additional messages should be printed.</dd>

</dl>

Different excitation and emission wavelengths are often used to measure
 EEMs. Hence, it is possible to have mismatchs between measured wavelengths
 and wavelengths used to calculate specific metrics. In these
 circumstances, EEMs are interpolated using the
 <code>interp2</code> function from the <code>parcma</code> library. A
 message warning the user will be prompted if data interpolation is
 performed.

eem_peaks: Extract fluorescence peaks

Description

Usage

Value

Arguments

Interpolation

See Also

Examples