R base functions for inspecting an integrated profile of biological targets
(vpi
) object.
Usage
# S3 method for class 'vpi'
summary(object, ...)
is.vpi(x)
Value
For summary.vpi()
: prints summary of the vpi
object.
For is.vpi()
: TRUE
for an object of class vpi
, otherwise
FALSE
.
Details
A integrated profile of biological targets is a specially classed
data.frame
generated by the function integrate_profile()
with the
following quantities:
radar
: Radar identifier.datetime
: POSIXct date of each profile in UTC.vid
: Vertically Integrated Density in individuals/km^2.vid
is a surface density, whereasdens
invp
objects is a volume density.vir
: Vertically Integrated Reflectivity in cm^2/km^2.mtr
: Migration Traffic Rate in individuals/km/h.rtr
: Reflectivity Traffic Rate in cm^2/km/h.mt
: Migration Traffic in individuals/km, cumulated from the start of the time series up todatetime
.rt
: Reflectivity Traffic in cm^2/km, cumulated from the start of the time series up todatetime
.ff
: Horizontal ground speed in m/s.dd
: Horizontal ground speed direction in degrees.u
: Ground speed component west to east in m/s.v
: Ground speed component south to north in m/s.height
: Mean flight height (height weighted by eta) in m above sea level.
Examples
# Load the example vertical profile time series and integrate to a vpi
vpi <- integrate_profile(example_vpts)
# Check if it is an object of class vpi
is.vpi(vpi)
#> [1] TRUE
# Get summary info
summary(vpi)
#> Vertically integrated profile(s) (class vpi)
#>
#> radar: KBGM
#> # profiles: 1934
#> time range (UTC): 2016-09-01 00:02:00 - 2016-09-10 11:56:00