
Convert energy-based quantities into photon-based quantities.
Source:R/spct-conversion-qty-unit.R
e2q.Rd
Conversion methods for spectral energy irradiance into spectral photon irradiance and for spectral energy response into spectral photon response.
Usage
e2q(x, action, byref, ...)
# Default S3 method
e2q(x, action = "add", byref = FALSE, ...)
# S3 method for class 'source_spct'
e2q(x, action = NULL, byref = FALSE, ...)
# S3 method for class 'response_spct'
e2q(x, action = "add", byref = FALSE, ...)
# S3 method for class 'source_mspct'
e2q(x, action = "add", byref = FALSE, ..., .parallel = FALSE, .paropts = NULL)
# S3 method for class 'response_mspct'
e2q(x, action = "add", byref = FALSE, ..., .parallel = FALSE, .paropts = NULL)
Arguments
- x
an R object.
- action
a character string, one of "add", or "replace".
- byref
logical indicating if a new object will be created by reference or a new object returned.
- ...
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.
Details
The converted spectral values are added to or replace the existing
spectral values depending on the argument passed to parameter
action
. Addition is currently not supported for normalized spectra.
If the spectrum has been normalized with a recent version of package
'photobiology' the spectrum will be renormalized after conversion using the
same arguments as previously.
Methods (by class)
e2q(default)
: Default methode2q(source_spct)
: Method for spectral irradiancee2q(response_spct)
: Method for spectral responsivenesse2q(source_mspct)
: Method for collections of (light) source spectrae2q(response_mspct)
: Method for collections of response spectra
See also
Other quantity conversion functions:
A2T()
,
Afr2T()
,
T2A()
,
T2Afr()
,
any2T()
,
as_quantum()
,
e2qmol_multipliers()
,
e2quantum_multipliers()
,
q2e()