signal_slice | R Documentation |
Choose channels by position.
signal_slice(object, ...)
## S4 method for signature 'GammaSpectrum'
signal_slice(object, ...)
## S4 method for signature 'GammaSpectra'
signal_slice(object, ...)
object |
A GammaSpectrum or GammaSpectra object. |
... |
|
Either positive values to keep, or negative values to drop, should be provided. The values provided must be either all positive or all negative.
If no value is provided, an attempt is made to define the number of channels to skip at the beginning of the spectrum. This drops all channels before the highest count maximum. This is intended to deal with the artefact produced by the rapid growth of random background noise towards low energies.
A GammaSpectrum or GammaSpectra object.
N. Frerebeau
Other signal processing:
baseline
,
peaks_find()
,
peaks_search()
,
signal_integrate()
,
signal_split()
,
signal_stabilize()
,
smooth()
## Import CNF files
spc_file <- system.file("extdata/LaBr.CNF", package = "gamma")
spc <- read(spc_file)
## Plot spectrum
plot(spc)
## Slice
sliced <- signal_slice(spc)
plot(sliced)
sliced <- signal_slice(spc, -c(1:35))
plot(sliced)
sliced <- signal_slice(sliced, 450:550)
plot(sliced)
## Split
g <- rep(c("A", "B", "C"), c(250, 500, 274))
splited <- signal_split(spc, g)
plot(splited, facet = TRUE)
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