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Convert absorbance into transmittance

Source: R/spct-conversion-qty-unit.R
A2T.Rd

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 "add" or "replace".

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)

  • A2T(default): Default method for generic function

  • A2T(numeric): method for numeric vectors

  • A2T(filter_spct): Method for filter spectra

  • A2T(filter_mspct): Method for collections of filter spectra

See also

Other quantity conversion functions: Afr2T(), T2A(), T2Afr(), any2T(), as_quantum(), e2q(), e2qmol_multipliers(), e2quantum_multipliers(), q2e()