ojaMedianFn: Value of the Oja Criterion
In OjaNP: Multivariate Methods Based on the Oja Median and Related Concepts
Description
Usage
Arguments
Value
Author(s)
References
See Also
Examples
Description
The function returns the value of the Oja criterion function for a given point.
Usage
1
ojaMedianFn(X, x)
Arguments
X
a numeric data set or data matrix.
x
a numeric vector with the coordinates of interest.
Value
a numeric value containing the ciriterion evaluated at x for the data X.
Author(s)
ported to R by Daniel Fischer. Original C++ code by Tommi Ronkainen.
References
Oja, H. (1983), Descriptive statistics for multivariate distributions, Statistics and Probability Letters, 1, 327–332.
Ronkainen, T., Oja, H. and Orponen, P. (2002), Computation of the multivariate Oja median, in Dutter R., Filzmoser P.,Gather U. and Rousseeuw, P. J.: Developments in Robust Statistics, Heidelberg: Springer, 344–359.
See Also
Examples
1
2
3
4
5
data(biochem)
X <- as.matrix(biochem[,1:2])
x <- ojaMedian(X)
ojaMedianFn(X, x)
ojaMedianFn(X, c(1.1, 0.4))
OjaNP documentation built on Feb. 23, 2020, 5:07 p.m.
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Description Usage Arguments Value Author(s) References See Also Examples
Description
The function returns the value of the Oja criterion function for a given point.
Usage
1 | ojaMedianFn(X, x)
|
Arguments
X |
a numeric data set or data matrix. |
x |
a numeric vector with the coordinates of interest. |
Value
a numeric value containing the ciriterion evaluated at x for the data X.
Author(s)
ported to R by Daniel Fischer. Original C++ code by Tommi Ronkainen.
References
Oja, H. (1983), Descriptive statistics for multivariate distributions, Statistics and Probability Letters, 1, 327–332.
Ronkainen, T., Oja, H. and Orponen, P. (2002), Computation of the multivariate Oja median, in Dutter R., Filzmoser P.,Gather U. and Rousseeuw, P. J.: Developments in Robust Statistics, Heidelberg: Springer, 344–359.
See Also
Examples
1 2 3 4 5 | data(biochem)
X <- as.matrix(biochem[,1:2])
x <- ojaMedian(X)
ojaMedianFn(X, x)
ojaMedianFn(X, c(1.1, 0.4))
|
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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