GammaSpectra-class | R Documentation |
Represents a collection of spectra of gamma ray spectrometry measurements.
This class extends the base list
and can only contains
GammaSpectrum objects.
In the code snippets below, x
is a GammaSpectra
object.
length(x)
Get the number of elements in x
.
lengths(x)
Get the number of channels in each element of x
.
get_names(x)
, set_names(x) <- value
Retrieves or sets
the names of x
according to value
.
get_hash(x)
Get the MD5 hash of the raw data files.
get_channels(x)
Get the number of channels in each element of x
.
get_counts(x)
Get the counts of each element of x
.
get_energy(x)
Get the energy range of each element of x
.
get_rates(x)
Get the count rates of each element of x
.
In the code snippets below, x
is a GammaSpectra
object.
x[i]
Extracts the elements selected by subscript i
.
i
can be missing
or NULL
, numeric
or character
vector or a
factor
. Returns a new GammaSpectra
object.
x[i, j]
Like the above but allows to select a slot thru j
(see
examples). j
is a character
vector of length one. Returns a list
.
x[[i]]
Extracts the elements selected by subscript i
.
i
can be a numeric
or character
vector of length one. Returns the
corresponding GammaSpectrum object.
N. Frerebeau
Other class:
Baseline-class
,
CalibrationCurve-class
,
GammaSpectrum-class
,
PeakPosition-class
,
coerce()
## Import all CNF files in a given directory
spc_dir <- system.file("extdata/BDX_LaBr_1/calibration", package = "gamma")
(spc <- read(spc_dir))
## Access
get_hash(spc)
get_names(spc)
get_livetime(spc)
get_realtime(spc)
lengths(spc)
range_energy(spc)
## Subset
spc[] # All spectra
spc[NULL] # All spectra
spc[1] # The first spectrum
spc[-6] # Delete the sixth spectrum
spc[1:3] # The first three spectra
spc[c(1, 3)] # The first and third spectra
spc["BRIQUE"] # The spectrum named 'BRIQUE'
spc[c("BRIQUE", "C347")] # The spectra named 'BRIQUE' and 'C347'
spc[1:3, "energy"] # The slot 'energy' of the first three spectra
spc[[1]]
spc[["BRIQUE"]]
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