photobiology (version 0.9.30)

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, ...)

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.

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".

Methods (by class)

  • default:

  • filter_mspct:

  • source_mspct:

  • response_mspct:

  • reflector_mspct:

See Also

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