createLocalList {clampSeg}R Documentation

Precomputes quantities for hilde and improveSmallScales

Description

Allows to precompute quantities that can be passed to hilde and improveSmallScales, all arguments have to coincide with the corresponding ones in those function calls. Doing so saves run time if those functions are called multiple times (with the same arguments) as then the quantities have to be computed only once.

Usage

createLocalList(filter, method = c("2Param", "LR"),
               lengths = if (method == "LR") 1:20 else 1:65)

Arguments

filter

an object of class lowpassFilter giving the used analogue lowpass filter

method

the testing method for short events, "2Param" allows for heterogeneous noise, "LR" assumes homogeneous noise

lengths

a vector of integers giving the lengths on which tests will be performed to detect short events, should be chosen such that events on larger scales are already detected by the previous jsmurf step

Value

An object of class "localList", contains computed quantities used by hilde and improveSmallScales

See Also

hilde, improveSmallScales, lowpassFilter

Examples

# the used filter of the gramicidin A recordings given by gramA
filter <- lowpassFilter(type = "bessel", param = list(pole = 4L, cutoff = 1e3 / 1e4),
                        sr = 1e4)


localList <- createLocalList(filter = filter, method = "LR")

# idealisation by HILDE using localList
# this call requires a Monte-Carlo simulation
# and therefore might last a few minutes,
# progress of the Monte-Carlo simulation is reported
idealisation <- hilde(gramA, filter = filter, family = "jsmurfPS", method = "LR",
                      startTime = 9, messages = 10, localList = localList)

identical(hilde(gramA, filter = filter, family = "jsmurfPS", method = "LR",
                startTime = 9), idealisation)

# HILDE allowing heterogeneous noise, for only few lengths
localList <- createLocalList(filter = filter, method = "2Param", lengths = c(3, 10, 25))

# localList has to be computed with the same filter, method and lengths
hilde(gramA, filter = filter, family = "hjsmurf", method = "2Param",
      startTime = 9, messages = 10, r = 100,
      lengths = c(3, 10, 25), localList = localList)
# r = 100 is used to reduce its run time,
# this is okay for illustration purposes, but for precise results
# a larger number of Monte-Carlo simulations is recommend

[Package clampSeg version 1.1-1 Index]