photobiology: A2T – R documentation

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photobiology

A2T

Convert absorbance into transmittance

Description

Function that converts absorbance (a.u.) into transmittance (fraction).

Usage

A2T(x, action, byref, ...)

## Default S3 method:
A2T(x, action = NULL, byref = FALSE, ...)

## S3 method for class 'numeric'
A2T(x, action = NULL, byref = FALSE, ...)

## S3 method for class 'filter_spct'
A2T(x, action = "add", byref = FALSE, ...)

## S3 method for class 'filter_mspct'
A2T(x, action = "add", byref = FALSE, ..., .parallel = FALSE, .paropts = NULL)

Arguments

`x`	an R object
`action`	a character string
`byref`	logical indicating if new object will be created by reference or by copy of `x`
`...`	not used in current version
`.parallel`	if TRUE, apply function in parallel, using parallel backend provided by foreach
`.paropts`	a list of additional options passed into the foreach function when parallel computation is enabled. This is important if (for example) your code relies on external data or packages: use the .export and .packages arguments to supply them so that all cluster nodes have the correct environment set up for computing.

Value

A copy of x with a column Tfr added and A and Afr possibly deleted except for w.length. If action = "replace", in all cases, the additional columns are removed, even if no column needs to be added.

Methods (by class)

default: Default method for generic function
numeric: method for numeric vectors
filter_spct: Method for filter spectra
filter_mspct: Method for collections of filter spectra

A2T