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