oneid

Generates data for one <code>id</code>

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 

oneid function

<dl><dt>id</dt>
<dd>A unique integer.</dd>
<dt>n_obs</dt>
<dd>An integer number of observations to produce.</dd>
<dt>type</dt>
<dd>Response type, 1 is constant, 2 is a sin curve portion, and 3 is a sigmoid
portion.</dd>
<dt>intercept</dt>
<dd>Used to set response at <code>smin</code> time value (not 0) and shift all responses
accordingly.</dd>
<dt>start</dt>
<dd>Negative integer giving time of first observation.</dd>
<dt>end</dt>
<dd>Positive integer giving time of last observation.</dd>
<dt>smin</dt>
<dd>The smallest possible <code>start</code> value among all <code>id</code>s. Used to align with
intercept and then dropped.</dd>
<dt>emax</dt>
<dd>The largest possible <code>end</code> value among all <code>id</code>s. Used to scale sin and
sigmoid support.</dd>
<dt>noise</dt>
<dd>Standard deviation of zero mean Gaussian noise added to response functions.</dd></dl>

Arguments

Generates data for one id — oneid

<dl>

<dt>id</dt>
<dd>A unique integer.</dd>


<dt>n_obs</dt>
<dd>An integer number of observations to produce.</dd>


<dt>type</dt>
<dd>Response type, 1 is constant, 2 is a sin curve portion, and 3 is a sigmoid
portion.</dd>


<dt>intercept</dt>
<dd>Used to set response at <code>smin</code> time value (not 0) and shift all responses
accordingly.</dd>


<dt>start</dt>
<dd>Negative integer giving time of first observation.</dd>


<dt>end</dt>
<dd>Positive integer giving time of last observation.</dd>


<dt>smin</dt>
<dd>The smallest possible <code>start</code> value among all <code>id</code>s. Used to align with
intercept and then dropped.</dd>


<dt>emax</dt>
<dd>The largest possible <code>end</code> value among all <code>id</code>s. Used to scale sin and
sigmoid support.</dd>


<dt>noise</dt>
<dd>Standard deviation of zero mean Gaussian noise added to response functions.</dd>

</dl>

oneid: Generates data for one `id`

Description

Usage

Value

Arguments