splat: splat
In zachmayer/pirouette: Fast Rotation Forests
Description
Usage
Arguments
Value
References
Examples
Description
Splat a matrix into a lower dimension.
Usage
1
Arguments
x
a sparse matrix
newdim
new dimensionality
prob
the probability each entry of the rotation matrix is non-zero. 1/3 is one heuristic to use (for 3x faster processing), 1/sqrt(ncol(x)) is another, for sqrt(x)-fold faster processing.
retx
If true, return the splatted matrix as well as the rotation.
Value
a splatted Matrix
References
http://web.stanford.edu/~hastie/Papers/Ping/KDD06_rp.pdf
Examples
1
zachmayer/pirouette documentation built on May 4, 2019, 9:04 p.m.
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Description Usage Arguments Value References Examples
Description
Splat a matrix into a lower dimension.
Usage
1 |
Arguments
x |
a sparse matrix |
newdim |
new dimensionality |
prob |
the probability each entry of the rotation matrix is non-zero. 1/3 is one heuristic to use (for 3x faster processing), 1/sqrt(ncol(x)) is another, for sqrt(x)-fold faster processing. |
retx |
If true, return the splatted matrix as well as the rotation. |
Value
a splatted Matrix
References
http://web.stanford.edu/~hastie/Papers/Ping/KDD06_rp.pdf
Examples
1 |
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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