This function finds all peaks (local maxima) in a spectrum, using a user
provided size threshold relative to the tallest peak (global maximum) bellow
which found peaks are ignored---i.e., not included in the returned value. This
is a wrapper built on top of function peaks()
from package 'splus2R'.
find_peaks(x, ignore_threshold = 0, span = 3, strict = TRUE, na.rm = FALSE)
numeric vector
numeric Value between 0.0 and 1.0 indicating the relative size compared to tallest peak threshold below which peaks will be ignored. Negative values set a threshold so that the tallest peaks are ignored, instead of the shortest.
integer A peak is defined as an element in a sequence which is
greater than all other elements within a window of width span
centered at that element. Use NULL
for the global peak.
logical If TRUE
, an element must be strictly greater
than all other values in its window to be considered a peak.
logical indicating whether NA
values should be stripped
before searching for peaks.
A logical vector of the same length as x
. Values that are
TRUE
correspond to local peaks in the data.
Other peaks and valleys functions:
find_spikes()
,
get_peaks()
,
peaks()
,
replace_bad_pixs()
,
spikes()
,
valleys()
,
wls_at_target()
# NOT RUN {
with(sun.data, w.length[find_peaks(s.e.irrad)])
# }
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