Build a list of unweighted "waveband" objects that can be used as input when calculating irradiances.
Usage
split_bands(
x,
list.names = NULL,
short.names = is.null(list.names),
length.out = NULL
)Arguments
- x
a numeric vector of wavelengths to split at (nm), or a range of wavelengths or a generic_spct or a waveband.
- list.names
character vector with names for the component wavebands in the returned list (in order of increasing wavelength)
- short.names
logical indicating whether to use short or long names for wavebands
- length.out
numeric giving the number of regions to split the range into (ignored if w.length is not numeric).
Note
list.names is used to assign names to the elements of the list,
while the waveband objects themselves always retain their wb.label
and wb.name as generated during their creation.
See also
Other waveband constructors:
waveband()
Examples
split_bands(c(400,500,600))
#> $wb1
#> range.400.500
#> low (nm) 400
#> high (nm) 500
#> weighted none
#>
#> $wb2
#> range.500.600
#> low (nm) 500
#> high (nm) 600
#> weighted none
#>
split_bands(list(c(400,500),c(550,650)))
#> $wb.a
#> range.400.500
#> low (nm) 400
#> high (nm) 500
#> weighted none
#>
#> $wb.b
#> range.550.650
#> low (nm) 550
#> high (nm) 650
#> weighted none
#>
split_bands(list(A=c(400,500),B=c(550,650)))
#> $A
#> range.400.500
#> low (nm) 400
#> high (nm) 500
#> weighted none
#>
#> $B
#> range.550.650
#> low (nm) 550
#> high (nm) 650
#> weighted none
#>
split_bands(c(400,500,600), short.names=FALSE)
#> $range.400.500
#> range.400.500
#> low (nm) 400
#> high (nm) 500
#> weighted none
#>
#> $range.500.600
#> range.500.600
#> low (nm) 500
#> high (nm) 600
#> weighted none
#>
split_bands(c(400,500,600), list.names=c("a","b"))
#> $a
#> range.400.500
#> low (nm) 400
#> high (nm) 500
#> weighted none
#>
#> $b
#> range.500.600
#> low (nm) 500
#> high (nm) 600
#> weighted none
#>
split_bands(c(400,700), length.out=6)
#> $wb1
#> range.400.450
#> low (nm) 400
#> high (nm) 450
#> weighted none
#>
#> $wb2
#> range.450.500
#> low (nm) 450
#> high (nm) 500
#> weighted none
#>
#> $wb3
#> range.500.550
#> low (nm) 500
#> high (nm) 550
#> weighted none
#>
#> $wb4
#> range.550.600
#> low (nm) 550
#> high (nm) 600
#> weighted none
#>
#> $wb5
#> range.600.650
#> low (nm) 600
#> high (nm) 650
#> weighted none
#>
#> $wb6
#> range.650.700
#> low (nm) 650
#> high (nm) 700
#> weighted none
#>
split_bands(400:700, length.out=3)
#> $wb1
#> range.400.500
#> low (nm) 400
#> high (nm) 500
#> weighted none
#>
#> $wb2
#> range.500.600
#> low (nm) 500
#> high (nm) 600
#> weighted none
#>
#> $wb3
#> range.600.700
#> low (nm) 600
#> high (nm) 700
#> weighted none
#>
split_bands(sun.spct, length.out=10)
#> $wb1
#> range.280.332
#> low (nm) 280
#> high (nm) 332
#> weighted none
#>
#> $wb2
#> range.332.384
#> low (nm) 332
#> high (nm) 384
#> weighted none
#>
#> $wb3
#> range.384.436
#> low (nm) 384
#> high (nm) 436
#> weighted none
#>
#> $wb4
#> range.436.488
#> low (nm) 436
#> high (nm) 488
#> weighted none
#>
#> $wb5
#> range.488.540
#> low (nm) 488
#> high (nm) 540
#> weighted none
#>
#> $wb6
#> range.540.592
#> low (nm) 540
#> high (nm) 592
#> weighted none
#>
#> $wb7
#> range.592.644
#> low (nm) 592
#> high (nm) 644
#> weighted none
#>
#> $wb8
#> range.644.696
#> low (nm) 644
#> high (nm) 696
#> weighted none
#>
#> $wb9
#> range.696.748
#> low (nm) 696
#> high (nm) 748
#> weighted none
#>
#> $wb10
#> range.748.800
#> low (nm) 748
#> high (nm) 800
#> weighted none
#>
split_bands(waveband(c(400,700)), length.out=5)
#> $wb1
#> range.400.460
#> low (nm) 400
#> high (nm) 460
#> weighted none
#>
#> $wb2
#> range.460.520
#> low (nm) 460
#> high (nm) 520
#> weighted none
#>
#> $wb3
#> range.520.580
#> low (nm) 520
#> high (nm) 580
#> weighted none
#>
#> $wb4
#> range.580.640
#> low (nm) 580
#> high (nm) 640
#> weighted none
#>
#> $wb5
#> range.640.700
#> low (nm) 640
#> high (nm) 700
#> weighted none
#>