cluster variable

Noun

 * 1)  an RR Lyrae variable; a type of variable star commonly (but not exclusively) found in globular clusters
 * 2)  A variable whose values are used to classify data points into clusters; a variable that identifies one of the defining properties of clusters.
 * 1)  A variable whose values are used to classify data points into clusters; a variable that identifies one of the defining properties of clusters.
 * 1)  A variable whose values are used to classify data points into clusters; a variable that identifies one of the defining properties of clusters.
 * 1)  A variable whose values are used to classify data points into clusters; a variable that identifies one of the defining properties of clusters.
 * 1)  A variable whose values are used to classify data points into clusters; a variable that identifies one of the defining properties of clusters.