ir_get_wavenumberindex

<code>ir_get_wavenumberindex</code> gets for a defined wavenumber value or set of
wavenumber values the corresponding indices (row number) in an object of
class <code>ir</code> that has been flattened with <code>ir_flatten()</code>. If the
specified wavenumber values do not match exactly the wavenumber values in the
<code>ir</code> object, the indices for the next wavenumber values will be
returned, along with a warning.

Functions to import and handle infrared spectra (import from '.csv' and
Thermo Galactic's '.spc', baseline correction, binning, clipping,
interpolating, smoothing, averaging, adding, subtracting, dividing,
multiplying, atmospheric correction, 'tidyverse' methods, plotting).

Henning Teickner

Functions to Handle and Preprocess Infrared Spectra

ir_get_wavenumberindex function

<dl><dt>x</dt>
<dd>A data.frame with a column x representing the x units of a spectrum
or several spectra (e.g. in the form of an object of class
<code>ir_flat</code>).</dd>
<dt>wavenumber</dt>
<dd>A numeric vector with wavenumber values for which to get
indices.</dd>
<dt>warn</dt>
<dd>logical value indicating if warnings should be displayed
(<code>TRUE</code>) or not (<code>FALSE</code>).</dd></dl>

Arguments

Gets the index of a defined wavenumber value for a spectrum — ir_get_wavenumberindex

<dl>

<dt>x</dt>
<dd>A data.frame with a column x representing the x units of a spectrum
or several spectra (e.g. in the form of an object of class
<code>ir_flat</code>).</dd>


<dt>wavenumber</dt>
<dd>A numeric vector with wavenumber values for which to get
indices.</dd>


<dt>warn</dt>
<dd>logical value indicating if warnings should be displayed
(<code>TRUE</code>) or not (<code>FALSE</code>).</dd>

</dl>

ir_get_wavenumberindex: Gets the index of a defined wavenumber value for a spectrum

Description

Usage

Value

Arguments

Examples