How do I assign names to clusters ? |
For presentation and publishing
purposes, it is often convenient to assign names to clusters and make
them appear in the graphic windows. Typically, a cluster name reflects
the biological function of the genes in the cluster, or the general trend
of the expression levels of the genes in the cluster (such as "periodic",
"ascending", "controlled by X", etc.). ArrayMiner
allows you to assign names to clusters, and displays those names in most
graphical representations, in particular the 2D and 3D view of your clustering
solution. |
Cluster names shown in the 3D view |
To assign a name to a cluster,
right-click on the cluster's thumbnail in the Profiles
Header in the main graphic
window, and select the "Set cluster name" in the popup menu.
To remove a name, simply set an empty name. Note that two clusters cannot
have the same name. The set of outliers (Gaussian
clustering only) cannot be assigned a name. Since a cluster name identifies a cluster, and a cluster is a set of genes, it follows that if the contents of (the set of genes in) a named cluster changes, the name is no longer relevant. Accordingly, a cluster's name is removed when the cluster changes, which may (and ususally does) happen during the clustering process. The best time to assign cluster names is therefore at the end of a clustering process. When ArrayMiner is run from GeneSpring, cluster names are fully utilised:
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