Produce sound x microphone matrix, possibly with sound covariates as extra columns.
signalmatrix(object, noise = FALSE, recodezero = FALSE,
prefix = "Ch", signalcovariates = NULL, names = NULL)
A dataframe with dim = c(n,K+j) where n is the number of separate sounds, K is the number of microphones, and j is the number of covariates (by default j = 0).
object inheriting from secr class `capthist'
logical; if TRUE, noise is extracted instead of signal
logical; if TRUE zero signals are set to NA
character value used to form channel names
character vector of covariate names from signalframe to add as columns
character vector of column names
This function extracts signal or noise data from a capthist object, where it is stored in the `signalframe' attribute, as a more natural sound x microphone table. There is no equivalent replacement function.
The signalcovariates argument may be used to specify additional
columns of the signal frame to collapse and add as columns to the right
of the actual signal data. Ordinarily there will be multiple rows in
signalframe for each row in the output; the covariate value is taken
from the first matching row.
If names is not provided, column names are constructed from the
detector names. If the length of names is less than the number of
columns, simple numerical names are constructed.
ovensong
## use 'secr' ovenbird data
signalmatrix(signalCH)
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