as_spectra

Convert matrix or data frame to spectra

Input/Output, processing and visualization of spectra taken with different spectrometers, including SVC (Spectra Vista), ASD and PSR (Spectral Evolution). Implements an S3 class 'spectra' that other packages can build on. Provides methods to access, plot, manipulate, splice sensor overlap, vector normalize and smooth spectra.

Jose Eduardo Meireles

spectrolab

Class and Methods for Spectral Data

Anna K. Schweiger

Jeannine Cavender-Bares

as_spectra function

<dl><dt>x</dt>
<dd>matrix or dataframe. Samples are in rows and bands in columns.
Any data that are not the spectra themselves (labels or metadata)
must have their column index included in `name_idx` or `meta_idxs`.</dd>
<dt>name_idx</dt>
<dd>column index with sample names. Defaults to NULL. If NULL
or 0, rownames(x) or a sequence of integers will be assigned
as names.</dd>
<dt>meta_idxs</dt>
<dd>column indices with metadata (not name and not value).
Defaults to NULL</dd></dl>

Arguments

Author

Convert matrix or data frame to spectra — as_spectra

<dl>

<dt>x</dt>
<dd>matrix or dataframe. Samples are in rows and bands in columns.
Any data that are not the spectra themselves (labels or metadata)
must have their column index included in `name_idx` or `meta_idxs`.</dd>


<dt>name_idx</dt>
<dd>column index with sample names. Defaults to NULL. If NULL
or 0, rownames(x) or a sequence of integers will be assigned
as names.</dd>


<dt>meta_idxs</dt>
<dd>column indices with metadata (not name and not value).
Defaults to NULL</dd>

</dl>

as_spectra: Convert matrix or data frame to spectra

Description

Usage

Value

Arguments

Author

Examples