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The category of matrices is equivalent to the category of finite-dimensional real vector spaces and linear maps. This is witnessed by the functor mapping the number n {\displaystyle n} to the vector space R n {\displaystyle \mathbb {R} ^{n}} , and an n × m {\displaystyle n\times m} matrix to the corresponding linear map R m → R n ...
One of the key concepts of the matrix of domination is that the different categories, like race and gender, are separate groups, rather than a combination. This is a problem that can be seen in the law as well when it comes to discrimination because the courts fail to view discrimination as an overarching umbrella of intersectionality. [7]
The Burt table is the symmetric matrix of all two-way cross-tabulations between the categorical variables, and has an analogy to the covariance matrix of continuous variables. Analyzing the Burt table is a more natural generalization of simple correspondence analysis , and individuals or the means of groups of individuals can be added as ...
The NM-method is consistent with a definition relying on the ordinal Liu-Lu index [3] which is the slightly modified version of the Coleman-index defined by Eq. (15) in Coleman (1958). [4] According to this definition, matrix is "closest" to matrix , if their Liu-Lu values are the same. In other words, if they are ranked the same by the ordinal ...
Categories are characterized by an aggregate of individuals who share something in common, but only become groups when their similarities have social implications. [4] Categories can appear to be higher in entitativity and essentialism than primary, secondary, and collective groups. This group is generally the largest type of such, where ...
Social statistics is the use of statistical measurement systems to study human behavior in a social environment. This can be accomplished through polling a group of people, evaluating a subset of data obtained about a group of people, or by observation and statistical analysis of a set of data that relates to people and their behaviors.
Several important classes of matrices are subsets of each other. This article lists some important classes of matrices used in mathematics, science and engineering. A matrix (plural matrices, or less commonly matrixes) is a rectangular array of numbers called entries. Matrices have a long history of both study and application, leading to ...
The other major development in the field is the rise of computational sociology, which expands the mathematical toolkit with the use of computer simulations, artificial intelligence and advanced statistical methods. The latter subfield also makes use of the vast new data sets on social activity generated by social interaction on the internet.