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photobiology (version 0.10.6)

s_mean: Mean from collection of spectra

Description

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

Usage

s_mean(x, trim, na.rm, ...)

# S3 method for default s_mean(x, trim = 0, na.rm = FALSE, ...)

# S3 method for source_mspct s_mean(x, trim = 0, na.rm = FALSE, ...)

# S3 method for response_mspct s_mean(x, trim = 0, na.rm = FALSE, ...)

# S3 method for filter_mspct s_mean(x, trim = 0, na.rm = FALSE, ...)

# S3 method for reflector_mspct s_mean(x, trim = 0, na.rm = FALSE, ...)

# S3 method for calibration_mspct s_mean(x, trim = 0, na.rm = FALSE, ...)

# S3 method for cps_mspct s_mean(x, trim = 0, na.rm = FALSE, ...)

# S3 method for raw_mspct s_mean(x, trim = 0, na.rm = FALSE, ...)

Arguments

x

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

trim

numeric The fraction (0 to 0.5) of observations to be trimmed from each end of x before the mean is computed. Values of trim outside that range are taken as the nearest endpoint.

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 same class as the members of the collection, such as "filter_spct", containing the mean spectrum.

Methods (by class)

  • default:

  • source_mspct:

  • response_mspct:

  • filter_mspct:

  • reflector_mspct:

  • calibration_mspct:

  • cps_mspct:

  • raw_mspct:

See Also

See mean for the mean() method used for the computations.