The cluster algebra is the algebra generated by all cluster variables
, after mutation is repeated ad infinitum.
Furthermore, different types of cluster variables
are used simultaneously in the cluster analyses below.
00% Table 4: Descriptive Statistics for Clusters and Sample Cluster Cluster One Two (n=90) (n=184) Cluster Variables
Funds per FTE $1,494,431 $467,315 Funds per Donor $7,169 [$1,326.
It is noteworthy that these 10 items represent only five of the 11 cluster variables
and that three variables account for eight of the top ten.
37) Ethnicity African American 56% White 33% Hispanic 5% Bi-Racial 6% Gender Male 89% Female 11% Medicaid Eligible 56% Ever Been Victimized 53% Ever Charged with Domestic Violence 45% Alcohol Abuse/Dependence Diagnosis 54% Marijuana Abuse/Dependence Diagnosis 92% Comorbid for DSM-IV Mental Health Diagnosis 51% * Significantly higher proportion, p<05 TABLE 2 Mean Scores on Cluster Variables
by Cluster Total GAIN-1 Cluster Variables
N = 114 Substance Problem Scale (past month) 3.
Bivariate correlations between the two industry cluster variables
and the two indicators of economic performance were calculated in SPSS.
The cluster analysis was carried out using a subset of all cases to avoid overestimation of the cluster variables
entering the multivariate logistic regression.
Clearly, Kant's dictum that facts without theory are blind (and theory without facts mute), would seem to argue in favor of the deductive approach to the selection of cluster variables
The groups are both above average on all of the cluster variables
with one exception: Cluster 4 is just below average on information seeking.
n]}, the cluster variables
obtained during this mutation process are Laurent polynomials in the variables [x.
define the cluster variables
[MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] by mutating the initial seed [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] periodically by the sequence 1, 2, 3, .
The cluster variables
are grouped into sets of constant cardinality n, the clusters, and the integer n is called the rank of the cluster algebra.