summary.vpi | R Documentation |
vpi
)R base functions for inspecting an integrated profile of biological targets
(vpi
) object.
## S3 method for class 'vpi'
summary(object, ...)
is.vpi(x)
object |
A |
... |
Additional arguments affecting the summary produced. |
x |
A |
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, whereas dens
in vp
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 to datetime
.
rt
: Reflectivity Traffic in cm^2/km, cumulated from the start of the
time series up to datetime
.
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.
For summary.vpi()
: prints summary of the vpi
object.
For is.vpi()
: TRUE
for an object of class vpi
, otherwise
FALSE
.
integrate_profile()
plot.vpi()
# 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)
# Get summary info
summary(vpi)
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