kchoose

A test function to evaluate information criteria for several k values. Not
exported and only for debugging internal use.

Clusters longitudinal trajectories over time (can be unequally
spaced, unequal length time series and/or partially overlapping series) on
a common time axis. Performs k-means clustering on a single continuous
variable measured over time, where each mean is defined by a thin plate
spline fit to all points in a cluster. Distance is MSE across trajectory
points to cluster spline. Provides graphs of derived cluster splines,
silhouette plots, and Adjusted Rand Index evaluations of the number
of clusters. Scales well to large data with multicore parallelism available
to speed computation.

George Ostrouchov

clustra

Clustering Longitudinal Trajectories

David Gagnon

Hanna Gerlovin

Chen Wei-Chen

Schmidt Drew

Oak Ridge National Laboratory 

U.S. Department of Veteran's Affairs 

kchoose function

<dl><dt>K</dt>
<dd>Integer vector of k values to try.</dd>
<dt>var</dt>
<dd>A numerical value of noise variance in generated data.</dd>
<dt>maxdf</dt>
<dd>Fitting parameters. See <code>trajectories</code>.</dd>
<dt>mc</dt>
<dd>Number of cores to use. Increase up to largest k, or number of cores
available, whichever is less. (On hyperthreaded cores, up to 2x number of
cores.)</dd>
<dt>fn</dt>
<dd>Character file name for output.</dd></dl>

Arguments

A test function to evaluate information criteria for several k values. Not
exported and only for debugging internal use. — kchoose

<dl>

<dt>K</dt>
<dd>Integer vector of k values to try.</dd>


<dt>var</dt>
<dd>A numerical value of noise variance in generated data.</dd>


<dt>maxdf</dt>
<dd>Fitting parameters. See <code>trajectories</code>.</dd>


<dt>mc</dt>
<dd>Number of cores to use. Increase up to largest k, or number of cores
available, whichever is less. (On hyperthreaded cores, up to 2x number of
cores.)</dd>


<dt>fn</dt>
<dd>Character file name for output.</dd>

</dl>

kchoose: A test function to evaluate information criteria for several k values. Not exported and only for debugging internal use.

Description

Usage

Arguments