ojaMedianFn: Value of the Oja Criterion
In fischuu/OjaNP: Multivariate Methods Based on the Oja Median and Related Concepts
ojaMedianFn R Documentation
Value of the Oja Criterion
Description
The function returns the value of the Oja criterion function for a given point.
Usage
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
ojaMedian
Examples
data(biochem)
X <- as.matrix(biochem[,1:2])
x <- ojaMedian(X)
ojaMedianFn(X, x)
ojaMedianFn(X, c(1.1, 0.4))
fischuu/OjaNP documentation built on April 19, 2023, 9:50 a.m.
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| ojaMedianFn | R Documentation |
Value of the Oja Criterion
Description
The function returns the value of the Oja criterion function for a given point.
Usage
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
ojaMedian
Examples
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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