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