topLeverage: Function to obtain indexes of the most influental features...
In rCUR: CUR decomposition package
Description
Usage
Arguments
Value
References
Examples
Description
The function sort the features (rows or columns) based on their influence (leverage score) and list out the indexes of the top valued items
Usage
1
topLeverage(object, C=TRUE, top.n=100, sort=TRUE)
Arguments
object
object of class CURobj-class
C
logical, if it is TRUE, then calculated the rank for the leverage scores belongs to columns, if FALSE, then to rows
top.n
number of indexes to list
sort
logical, if TRUE the indexes are sorted increasing
Value
The function returns a numerical vector of indexes of the most influental features
References
Mahoney M. W. and Drineas P. (2009) CUR matrix decompositions for improved data analysis. PNAS, 106(3):697-702
Andras Bodor, Istvan Csabai, Michael W Mahoney and Norbert Solymosi
rCUR:an R package for CUR matrix decomposition
BMC Bioinformatics 2012, 13:103
doi:10.1186/1471-2105-13-103
Examples
1
2
3
data(STTm)
res <- CUR(STTm, 3, 31, 12)
topLeverage(res, top.n=10)
rCUR documentation built on May 2, 2019, 2:21 a.m.
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Description Usage Arguments Value References Examples
Description
The function sort the features (rows or columns) based on their influence (leverage score) and list out the indexes of the top valued items
Usage
1 | topLeverage(object, C=TRUE, top.n=100, sort=TRUE)
|
Arguments
object |
object of class CURobj-class |
C |
logical, if it is TRUE, then calculated the rank for the leverage scores belongs to columns, if FALSE, then to rows |
top.n |
number of indexes to list |
sort |
logical, if TRUE the indexes are sorted increasing |
Value
The function returns a numerical vector of indexes of the most influental features
References
Mahoney M. W. and Drineas P. (2009) CUR matrix decompositions for improved data analysis. PNAS, 106(3):697-702
Andras Bodor, Istvan Csabai, Michael W Mahoney and Norbert Solymosi rCUR:an R package for CUR matrix decomposition BMC Bioinformatics 2012, 13:103 doi:10.1186/1471-2105-13-103
Examples
1 2 3 | data(STTm)
res <- CUR(STTm, 3, 31, 12)
topLeverage(res, top.n=10)
|
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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