fitEllipse: Adjust an ellipse on a contour plot
In jgodet/trackR: R tools and functions to compute jump analysis, describe and infer from single-molecule tracking data
Description
Usage
Arguments
Details
Author(s)
References
Examples
Description
Least squares fitting of an ellipse to point data
Usage
1
fitEllipse(x, y = NULL)
Arguments
x
x.coordinates
y
y.coordinates
Details
# Least squares fitting of an ellipse to point data using the algorithm described in Radim Halir & Jan Flusser. 1998
Adapted from the original Matlab code by Michael Bedward (2010)
michael.bedward@gmail.com
Subsequently improved by John Minter (2012)
http://lastresortsoftware.blogspot.fr/2012/09/fitting-ellipse-to-point-data.html
Author(s)
JuG
References
Radim Halir & Jan Flusser. 1998. Numerically stable direct least squares fitting of ellipses. Proceedings of the 6th International Conference in Central Europe on Computer Graphics and Visualization. WSCG '98, p. 125-132
Examples
1
2
3
4
5
ellipse <- createTestEllipse(NoiseLevel = 50)
plot(ellipse)
efit <- fitEllipse(ellipse)
e <- getEllipse(efit)
lines(e,col='red')
jgodet/trackR documentation built on May 24, 2020, 2:21 p.m.
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Description Usage Arguments Details Author(s) References Examples
Description
Least squares fitting of an ellipse to point data
Usage
1 | fitEllipse(x, y = NULL)
|
Arguments
x |
x.coordinates |
y |
y.coordinates |
Details
# Least squares fitting of an ellipse to point data using the algorithm described in Radim Halir & Jan Flusser. 1998 Adapted from the original Matlab code by Michael Bedward (2010) michael.bedward@gmail.com Subsequently improved by John Minter (2012) http://lastresortsoftware.blogspot.fr/2012/09/fitting-ellipse-to-point-data.html
Author(s)
JuG
References
Radim Halir & Jan Flusser. 1998. Numerically stable direct least squares fitting of ellipses. Proceedings of the 6th International Conference in Central Europe on Computer Graphics and Visualization. WSCG '98, p. 125-132
Examples
1 2 3 4 5 | ellipse <- createTestEllipse(NoiseLevel = 50)
plot(ellipse)
efit <- fitEllipse(ellipse)
e <- getEllipse(efit)
lines(e,col='red')
|
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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