Abstract
Through the factor analysis in the previous reports concerning the iconology of house facades, seven types of building groups have been found. This report will focus on the mutual relations between these seven types analyzed from two different directions. First, a study was carried out on the mutual relations among the seven types, disposed in a factor-coordinate system in which the axes were composed of seven factors derived from the results of three-mode factor analysis in nine perceptual scales. Moreover, applying a cluster analysis to the factor-loading matrix of buildings obtained from the results of factor analysis, the group formation determined by the mutual relations between individual buildings was clarified in a factor-coordinate system. Next, a study was carried out seeking to clarify the meaning of the extraction of just seven types, an,d also to clarify the differences in group formations in the nine perceptual scales and four categories. Here, for each of the seven types, the number of factors was gradually increased in the three-mode factor analysis of both the nine perceptual scales and the four categories, and the result were compared. This step revealed the structure of group formation in terms of the mutual relations among types, and the meaning of the formation and the differences in formation among the nine scales and the four categories were clarified. In conclusion, this series of reports has attempted to clarify structurally the characteristics and roles of the iconology of form in architecture.