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traj 2.2.0

• Added k-medoids as the default clustering algorithm.
• Added the Calinski-Harabasz index as the default criterion for determining the optimal number of clusters.

traj 2.1.0

• Makes substantial changes to the list of measures.
• In trajdata, the group of size 30 is made up of quadratic (instead of linear) curves.
• Introduces the vignette “Using the traj package”.

traj 2.0.1

• Fixes minor bugs and improves presentation.

traj 2.0.0

• Changes the way the measures are computed in order to be better suited to missing values and unequally spaced observation times.
• Allows for better control over the choice of a “midpoint”.
• Implements a capping procedure to automatically handle outliers. Measures of the form 0/0 are set to 1.
• Fixes an important bug in the implementation of step 2.
• The criterion of Tibshirani et al. based on the GAP statistic is the new default for choosing the number of clusters.
• Allows more control over the parameters of kmeans.
• The outputs of summary, print and plot are more detailed.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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