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