Description Usage Arguments Value Author(s) Examples
The function qbbox computes a bounding box for the given lat,lon
points with a few additional options such as quantile boxes, additional margins, etc.
1 2 3 4 5 6 7 |
lat |
latitude values |
lon |
longitude values |
TYPE |
|
margin |
|
q.lat |
|
q.lon |
|
verbose |
latR |
latitude range |
lonR |
longitude range |
Markus Loecher
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | lat = 37.85 + rnorm(100, sd=0.001);
lon = -120.47 + rnorm(100, sd=0.001);
#add a few outliers:
lat[1:5] <- lat[1:5] + rnorm(5, sd =.01);
lon[1:5] <- lon[1:5] + rnorm(5, sd =.01);
#range, discarding the upper and lower 10% of the data
qbbox(lat, lon, TYPE = "quantile");
#full range:
qbbox(lat, lon, TYPE = "all");
#add a 10% extra margin on all four sides:
qbbox(lat, lon, margin = list(m = c(10, 10, 10, 10), TYPE = c("perc", "abs")[1]));
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