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