s_range | R Documentation |
A method to compute the range of values across members of a collections of spectra. Computes the max and min at each wavelength across all the spectra in the collection returning a spectral object.
s_range(x, na.rm, ...)
## Default S3 method:
s_range(x, na.rm = FALSE, ...)
## S3 method for class 'filter_mspct'
s_range(x, na.rm = FALSE, ...)
## S3 method for class 'source_mspct'
s_range(x, na.rm = FALSE, ...)
## S3 method for class 'response_mspct'
s_range(x, na.rm = FALSE, ...)
## S3 method for class 'reflector_mspct'
s_range(x, na.rm = FALSE, ...)
## S3 method for class 'calibration_mspct'
s_range(x, na.rm = FALSE, ...)
## S3 method for class 'cps_mspct'
s_range(x, na.rm = FALSE, ...)
## S3 method for class 'raw_mspct'
s_range(x, na.rm = FALSE, ...)
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. |
... |
Further arguments passed to or from other methods. |
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.
s_range(default)
:
s_range(filter_mspct)
:
s_range(source_mspct)
:
s_range(response_mspct)
:
s_range(reflector_mspct)
:
s_range(calibration_mspct)
:
s_range(cps_mspct)
:
s_range(raw_mspct)
:
Trimming of extreme values and 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.
Objects of classes raw_spct and cps_spct can contain data from multiple scans. This functions are implemented for these classes only for the case when all member spectra contain data for a single scan, or spliced into a single column in the case of cps_spct members.
See Extremes
details on the min()
and
max()
methods used for the computations.
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