read_foreign2mspct {photobiologyInOut}

Read multiple foreign files with spectral data

Description

Read spectra from a homogeneous list of files based on a path and a list of filenames or a path and a search pattern for files. The imported spectra are returned as a single object of one of the collection of spectra classes from package 'photobiology'.

Usage

read_foreign2mspct(path = ".", list = NULL, pattern = NULL, .fun, ...)

Arguments

path

character A path point to the location of the files.

list

character A vector or list of character strings pointing to files relative to path,

pattern

character A search pattern to select files within path. See list.files which is used internally. Argument ignored is list is non-null.

.fun

function One of the functions exported by this package for reading spectral data.

...

Named arguments passed ot the call to .fun.

Details

This function iterates over a list of file names reading them with the function passed as argument to '.fun' and combines the spectra as a collection of spectra of a class suitable for the spectral objects returned by the argument to '.fun'. This function can either return for each file read either a single spectrum as an object of class 'generic_spct' or a class derived from it, or a collection of spectra of class 'generic_mspct' or a class derived from it. The class of the returned object depends on the class of the member spectra.

Value

An object of class 'generic_mspct' or a class derived from it, containing a collection of member spectra of class 'generic_spct' or of one of the classes derived from it.