photobiology (version 0.9.13)

spread: Length of object in wavelength units

Description

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

Usage

spread(x, ...)
"spread"(x, ...)
"spread"(x, ...)
"spread"(x, ...)
"spread"(x, ...)
"spread"(x, ..., idx = !is.null(names(x)))

Arguments

x

an R object

...

not used in current version

idx

logical whether to add a column with the names of the elements of spct

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

spread(sun.spct)