distanceCaculate: caculate distance
In ashther/ashtheR: check attence status on map
Description
Usage
Arguments
Details
Examples
Description
caculate the spherical distance between 2 point on earth
Usage
1
distanceCaculate(lon_1, lat_1, lon_2, lat_2, r = 6378137)
Arguments
lon_1, lon_2
numeric, degree longitude
lat_1, lat_2
numeric, degree latitude
r
earth radius from geosphere package
Details
although geosphere::distHaversine can caculate the spherical distance,
distanceCaculate is about 20X-30X faster than that,
and only has error less than 0.2%.
Examples
1
distanceCaculate(108.8821, 34.2341, 108.882, 34.2343)
ashther/ashtheR documentation built on May 27, 2019, 11:49 p.m.
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Description Usage Arguments Details Examples
Description
caculate the spherical distance between 2 point on earth
Usage
1 | distanceCaculate(lon_1, lat_1, lon_2, lat_2, r = 6378137)
|
Arguments
lon_1, lon_2 |
numeric, degree longitude |
lat_1, lat_2 |
numeric, degree latitude |
r |
earth radius from |
Details
although geosphere::distHaversine can caculate the spherical distance,
distanceCaculate is about 20X-30X faster than that,
and only has error less than 0.2%.
Examples
1 | distanceCaculate(108.8821, 34.2341, 108.882, 34.2343)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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