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photobiology (version 0.10.6)

spread: Expanse

Description

A function that returns the expanse (max(x) - min(x)) for R objects.

Usage

spread(x, ...)

wl_expanse(x, ...)

expanse(x, ...)

# S3 method for default expanse(x, ...)

# S3 method for numeric expanse(x, ...)

# S3 method for waveband expanse(x, ...)

# S3 method for generic_spct expanse(x, ...)

# S3 method for generic_mspct expanse(x, ..., idx = "spct.idx")

Arguments

x

an R object

...

not used in current version

idx

character Name of the column with the names of the members of the collection of spectra.

Value

A numeric value equal to max(x) - min(x). In the case of spectral objects wavelength difference in nm. For any other R object, according to available definitions of min and max.

Methods (by class)

  • default: Default method for generic function

  • numeric: Method for "numeric"

  • waveband: Method for "waveband"

  • generic_spct: Method for "generic_spct"

  • generic_mspct: Method for "generic_mspct" objects.

Examples

Run this code
# NOT RUN {
expanse(10:20)
expanse(sun.spct)
wl_expanse(sun.spct)

expanse(sun.spct)

# }

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