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photobiology (version 0.11.4)

s_mean_se: Mean and standard error from collection of spectra

Description

Method to compute the "parallel" mean and the SEM. The spectral values are summarised across members of a collection of spectra or of a spectral object containing multiple spectra in long form.

Usage

s_mean_se(x, na.rm, mult, ...)

# S3 method for default s_mean_se(x, na.rm = FALSE, mult = 1, ...)

# S3 method for generic_spct s_mean_se(x, na.rm = FALSE, mult = 1, ...)

# S3 method for filter_mspct s_mean_se(x, na.rm = FALSE, mult = 1, ...)

# S3 method for source_mspct s_mean_se(x, na.rm = FALSE, mult = 1, ...)

# S3 method for response_mspct s_mean_se(x, na.rm = FALSE, mult = 1, ...)

# S3 method for reflector_mspct s_mean_se(x, na.rm = FALSE, mult = 1, ...)

# S3 method for calibration_mspct s_mean_se(x, na.rm = FALSE, mult = 1, ...)

# S3 method for cps_mspct s_mean_se(x, na.rm = FALSE, mult = 1, ...)

# S3 method for raw_mspct s_mean_se(x, na.rm = FALSE, mult = 1, ...)

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 summary spectrum, with variables with names tagged for summaries other than mean or median.

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.

mult

numeric number of multiples of standard error.

...

Further arguments passed to or from other methods.

Methods (by class)

  • s_mean_se(default):

  • s_mean_se(generic_spct):

  • s_mean_se(filter_mspct):

  • s_mean_se(source_mspct):

  • s_mean_se(response_mspct):

  • s_mean_se(reflector_mspct):

  • s_mean_se(calibration_mspct):

  • s_mean_se(cps_mspct):

  • s_mean_se(raw_mspct):

Details

Method specializations compute the mean and SEM at each wavelength across a group of spectra stored in an object of one of the classes defined in package 'photobiology'. Omission of NAs is done separately at each wavelength. Interpolation is not applied, so all spectra in x must share the same set of wavelengths. An error is triggered if this condition is nor fulfilled. The value passed as argument to `mult`

See Also

See mean for the mean() method to compute the mean and se for the method used to compute the standard error of the mean.

Examples

Run this code
s_mean_se(sun_evening.mspct)

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