refEllipsoids: Reference ellipsoids
In geosphere: Spherical Trigonometry
View source: R/refEllipsoids.R
refEllipsoids R Documentation
Reference ellipsoids
Description
This function returns a data.frame with parameters a (semi-major axis) and 1/f (inverse flattening) for a set of reference ellipsoids.
Usage
refEllipsoids()
Value
data.frame
Note
To compute parameter b you can do
Author(s)
Robert J. Hijmans
See Also
area, perimeter
Examples
e <- refEllipsoids()
e[e$code=='WE', ]
#to compute semi-minor axis b:
e$b <- e$a - e$a / e$invf
geosphere documentation built on Nov. 16, 2022, 1:06 a.m.
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View source: R/refEllipsoids.R
| refEllipsoids | R Documentation |
Reference ellipsoids
Description
This function returns a data.frame with parameters a (semi-major axis) and 1/f (inverse flattening) for a set of reference ellipsoids.
Usage
refEllipsoids()
Value
data.frame
Note
To compute parameter b you can do
Author(s)
Robert J. Hijmans
See Also
area, perimeter
Examples
e <- refEllipsoids() e[e$code=='WE', ] #to compute semi-minor axis b: e$b <- e$a - e$a / e$invf
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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