Convert absorbance into transmittance
Data for typical calibration lamps
Data for typical calibration lamps
Data for typical calibration lamps
CIE A illuminant data
Green Arabidopsis leaf reflectance and transmittance.
Calculate deuterium lamp output spectrum from fitted constants
Data for typical calibration lamps
CIE D65 illuminant data
Incandescent "FEL" lamp emission spectrum
Green Arabidopsis leaf spectral transmittance.
Miscellaneous Mathematical Functions
Calculate absorbance from spectral absorbance.
Absorbance
Convert transmittance into absorbance.
Convert transmittance into absorptance.
Coerce to a collection-of-spectra
Coerce to a spectrum
Coerce to a spectrum
Green Arabidopsis leaf spectral reflectance.
Coerce to a collection-of-spectra
Green Arabidopsis leaf spectral transmittance.
Copy attributes from members of a generic_mspct
Coerce to a collection-of-spectra
Convert transmittance type.
Guess whether insertion of hinges is needed or not
Coerce to a spectrum
Coerce to a collection-of-spectra
Convert date to time-of-day in hours, minutes or seconds
Coerce to a spectrum
Convert spectral photon irradiance into spectral energy irradiance
Coerce to a spectrum
Coerce a collection of spectra into a matrix
Coerce to a spectrum
Trigonometric Functions
Coerce to a collection-of-spectra
Theoretical black body
Check that the "spct.version" attribute is set
Check the "time.unit" attribute of an existing source_spct object
Coerce to a spectrum
Combine collections of spectra
Coerce to a collection-of-spectra
Coerce to a collection-of-spectra
Coerce to a spectrum
Absorptance
Sanity check of wavelengths (internal function).
Coerce to a spectrum
Calculate absorptance from spectral absorptance.
Convert spectral energy irradiance into spectral photon irradiance
Coerce to a collection-of-spectra
Check that the "mspct.version" attribute is set
Spectral response of a back-thinned CCD image sensor.
Query which is the class of an spectrum
Linear energy CIE xyz colour matching function (CMF) 2 deg data
Coerce to a collection-of-spectra
Check validity of spectral objects
Convert spectral energy irradiance into spectral photon irradiance
Coerce to a spectrum
Sanity check a spectrum
Energy:photon ratio
Conversion from counts per second to physical quantities
Theoretical clear body
Convert the "time.unit" attribute of an existing source_spct object
Energy:energy ratio
Copy attributes
Theoretical spectrum of a clear material
Convolve function for collections of spectra
Convert a solar_time object into solar_date object
Times for sun positions
Defunct functions and methods
Average spectral data.
Coerce to a collection-of-spectra
Honeybee xyz chromaticity colour matching function data
Coarse-grained comparison of two spectra
CIE xyz chromaticity coordinates (CC) 10 deg data
Linear energy CIE 2008 luminous efficiency function 2 deg data
Color of an object
Expanse
Get the "normalized" attribute
Get the "where.measured" attribute
fshift a spectrum
Find repeated w.length values
Get the "Rfr.type" attribute
Counts per second from a measurement of a plastic film
Extract or replace parts of a spectrum
Collection-of-spectra constructor
Spectral weights
Extract or replace members of a collection of spectra
Scaled and/or interpolated light-source spectral output
Get the metadata attributes
Query class of spectrum summary objects
Merge into object_spct
Query if a spectrum contains photon- or energy-based data.
Query whether a generic spectrum has been normalized.
Merge and copy attributes
Query if it is a waveband
Linear energy CIE 2008 luminous efficiency function 10 deg data
Clean (=replace) off-range values in a spectrum
Clean a spectrum
Arithmetic Operators
Dimensions of an Object
Math function dispatcher for spectra
Clip head and/or tail of a spectrum
Linear energy CIE xyz colour matching function (CMF) 10 deg data
CIE xyz chromaticity coordinates 2 deg data
Clear the spectral weights cache
Divide two spectra, even if the wavelengths values differ
Convert energy-based quantities into photon-based quantities.
Energy:energy ratio
Calculate energy to quantum (mol) multipliers
Shift the scale of a spectrum using a summary function
Set spectral-data options
fscale a spectrum
Find peaks in a spectrum
Get the "scaled" attribute
Calculate energy to quantum multipliers
Find wavelength values in a spectrum
Calculate (energy) irradiance from spectral irradiance
Energy fluence
Get the "spct.version" attribute
Normalize spectral data
Energy-based photo-response
Green birch leaf reflectance.
Is an R object "effective"
Photon or energy irradiance from spectral energy or photon irradiance.
Get peaks and valleys in a spectrum
Query if a spectrum contains absorbance or transmittance data
Irradiance
Fluence
Encode in a Common Format
Energy irradiance
Compute range and format it
Get the "how.measured" attribute
Get the "Afr.type" attribute
Get the "Tfr.type" attribute
Rescale a spectrum using a summary function
Insert new wavelength values into a spectrum
Get the "time.unit" attribute of an existing source_spct object
Get the "bswf.used" attribute
Get the "idfactor" attribute
Get the "what.measured" attribute
Arithmetic Operators
Normalize a range argument into a true numeric range
Integrate spectral data.
Photon:energy ratio
Handle Missing Values in Objects
Arithmetic Operators
Arithmetic Operators
Query class of spectrum objects
Normalization of an R object
Query class of spectrum objects
Get the "when.measured" attribute
Get the "instr.desc" attribute
Get the "instr.settings" attribute
Get the "multiple.wl" attribute
Get the "mspct.version" attribute
Transmittance spectrum of clear polyester film
Map a spectrum to new wavelength values.
Return the First and Last Part of an Object
Gives irradiance from spectral irradiance.
Query if an object has old class names
Query class
Multiply two spectra, even if the wavelengths values differ
Arithmetic Operators
Join all spectra in a collection
Remove "generic_spct" and derived class attributes.
Convert photon-based quantities into energy-based quantities
Rounding of Numbers
Set the "when.measured" attribute
Set the "Afr.type" attribute
Mean and standard error from collection of spectra
Mean from collection of spectra
Spectral-object constructor
Set the "what.measured" attribute
Merge user supplied attribute names with default ones
Copy attributes into a tibble
Function that returns a vector containing the names of spectral summary
classes.
Daily solar spectral irradiance (simulated)
Insert wavelength values into spectral data.
Logarithms and Exponentials
Solar astronomy using Meeus' algorithm
Wavelength maximum
Check the "instr.settings" attribute
Find labels from "waveband" object
Map spectra to new wavelength values.
Calculate spectral values at a different set of wavelengths
Check the "instr.desc" attribute
Binary operation on two spectra, even if the wavelengths values differ
Insert wavelength values into spectral data.
Multi-spct transform methods
Names of multi-spectra classes
Peaks or local maxima
Photon irradiance
Relative Air Mass (AM)
Photon fluence
Calculate reflectance from spectral reflectance
rowwise functions for collections of spectra
Set the "instr.desc" attribute
Set the "Rfr.type" attribute
Spectral irradiance to rgb color conversion
Set the "instr.settings" attribute
Query whether a generic spectrum has been scaled
photobiology: Photobiological Calculations
Tag a spectrum
Trim (or expand) head and/or tail
Trim (or expand) head and/or tail
Thin the density of wavelength values
Photon irradiance
Spectral response of a GaAsP photodiode
RGB color values
Photo:photon ratio
Photon:photon ratio
Photon-based photo-response
Photon:energy ratio
Row-bind spectra
Remove "generic_mspct" and derived class attributes.
Wavelength range
Set the "scaled" attribute
Query if it is an spectrum is tagged
Reflectance
Midpoint
Wavelength minimum
Median of a collection of spectra
Product from collection of spectra
Range of a collection of spectra
Convert an R object into a spectrum object.
Set the "normalized" attribute
Set the "bswf.used" attribute
Set the "multiple.wl" attribute
Calculate a normalized index.
Water vapour pressure
Set computation options
Wavelength range to rgb color conversion
Sign
Create tagged spectrum from wavebands
Standard Deviation of a collection of spectra
Summary of a spectral object
Energy irradiance for split spectrum regions
List-of-wavebands constructor
Add two spectra
Theoretical spectrum of an opaque material
Print solar time and solar date objects
Print a "waveband" object
Print a spectral object
print.summary_generic_spct
Print spectral summary
Solar spectral irradiance (simulated)
Arithmetic Operators
Variance of a collection of spectra
Calculate response from spectral response
Solar angles
Extract all members from a collection
Valleys or local minima
Validate a geocode
Time difference between two time zones
Integrated response
Waveband constructor method
Standard Error of a collection of spectra
Convert 'long' or tidy spectral data into a collection of spectra
Calculate transmittance from spectral transmittance.
Subtract two spectra
Sum from collection of spectra
Set the "Tfr.type" attribute
Energy or photon irradiance for split spectrum regions
Function that returns a vector containing the names of spectra classes.
Daily solar spectral irradiance (simulated)
Convert a 'wide' or untidy data frame into a collection of spectra
Set the "time.unit" attribute of an existing source_spct object
Solar spectral irradiance (simulated)
Photon irradiance for split spectrum regions
Standard error of the mean
Set the "how.measured" attribute
Photon or energy ratio
Trim the "instr.settings" attribute
Trim (or expand) head and/or tail of a spectrum
Trim the "instr.desc" attribute
Overwrite spectral data values at existing wavelength values.
White led bulb spectrum
Theoretical white body
Insert spectral data values at new wavelength values.
Remove tags
Set the "where.measured" attribute
Set the "idfactor" attribute
Upgrade one spectral object
Use photobiology options
White led bulb spectrum
Upgrade one or more spectral objects
White led bulb spectrum
Classes common to all collection members.
Smooth a spectrum
Local solar time
Stepsize
Subsetting spectra
twilight argument check and conversion
Transmittance
Arithmetic Operators
Trim head and/or tail of a spectrum
Set error reporting options
Create tagged spectrum from wavebands
Wavelength to rgb color conversion
Create spectrum from wavebands
Find wavelengths values corresponding to a target spectral value
Transmittance spectrum of yellow theatrical gel.