photobiology (version 0.11.2)

s_sd: Standard Deviation of a collection of spectra

Description

A method to compute the standard deviation of values across members of a collections of spectra. Computes the standard deviation at each wavelength across all the spectra in the collection returning a spectral object.

Usage

s_sd(x, na.rm, ...)
# S3 method for default
s_sd(x, na.rm = FALSE, ...)
# S3 method for filter_mspct
s_sd(x, na.rm = FALSE, ...)
# S3 method for source_mspct
s_sd(x, na.rm = FALSE, ...)
# S3 method for response_mspct
s_sd(x, na.rm = FALSE, ...)
# S3 method for reflector_mspct
s_sd(x, na.rm = FALSE, ...)
# S3 method for calibration_mspct
s_sd(x, na.rm = FALSE, ...)
# S3 method for cps_mspct
s_sd(x, na.rm = FALSE, ...)
# S3 method for raw_mspct
s_sd(x, na.rm = FALSE, ...)

Value

If x is a collection spectral of objects, such as a "filter_mspct" object, the returned object is of class "generic_spct", containing the standard deviation among the spectra at each wavelength in a column with name ending in ".sd".

Arguments

x

An R object. Currently this package defines methods for collections of spectral objects.

na.rm

logical. A value indicating whether NA values should be stripped before the computation proceeds.

...

Further arguments passed to or from other methods.

Methods (by class)

• s_sd(default):

• s_sd(filter_mspct):

• s_sd(source_mspct):

• s_sd(response_mspct):

• s_sd(reflector_mspct):

• s_sd(calibration_mspct):

• s_sd(cps_mspct):

• s_sd(raw_mspct):

See Also

See sd for details about sd() methods for other classes.