The dystonias are movement disorders in which sustained muscle contractions cause twisting and repetitive movements or abnormal postures. The movements, which are involuntary and sometimes painful, may affect a single muscle; a group of muscles such as those in the arms, legs, or neck; or the entire body.
Definition of Data Clustering. Data Clustering is the classification of a data set into a group of numbers, where members of each group surround a particular number.efinition of Data Clustering. Data Clustering is the classification of a data set into a group of numbers, where members of each group surround a particular number.
Locus is a Latin word for place.. Its plural is loci.. In geometry, locus refers to a set of points that are described by some statement about their position. For example, the locus of points that are 1 unit from point A refers to the set of all points that are 1 unit from point A. This would be the circle with center A: