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  2. Help:Conditional tables - Wikipedia

    en.wikipedia.org/wiki/Help:Conditional_tables

    ParserFunctions allow for the conditional display of table rows, columns or cells (and really, just about anything else). But Parser functions have some limits. But Parser functions have some limits. Basic use

  3. Help:Table - Wikipedia

    en.wikipedia.org/wiki/Help:Table

    8.7 Conditional table row. ... Column 3<br>(row 1 cell 3) |- ... Phabricator request for floating table headers; tabulate, Python module for converting data ...

  4. Doubly stochastic matrix - Wikipedia

    en.wikipedia.org/wiki/Doubly_stochastic_matrix

    The class of doubly stochastic matrices is a convex polytope known as the Birkhoff polytope.Using the matrix entries as Cartesian coordinates, it lies in an ()-dimensional affine subspace of -dimensional Euclidean space defined by independent linear constraints specifying that the row and column sums all equal 1.

  5. Goodman and Kruskal's lambda - Wikipedia

    en.wikipedia.org/wiki/Goodman_and_Kruskal's_lambda

    Although Goodman and Kruskal's lambda is a simple way to assess the association between variables, it yields a value of 0 (no association) whenever two variables are in accord—that is, when the modal category is the same for all values of the independent variable, even if the modal frequencies or percentages vary. As an example, consider the ...

  6. Contingency table - Wikipedia

    en.wikipedia.org/wiki/Contingency_table

    C can be adjusted so it reaches a maximum of 1.0 when there is complete association in a table of any number of rows and columns by dividing C by where k is the number of rows or columns, when the table is square [citation needed], or by where r is the number of rows and c is the number of columns.

  7. Carmichael function - Wikipedia

    en.wikipedia.org/wiki/Carmichael_function

    The Carmichael lambda function of a prime power can be expressed in terms of the Euler totient. Any number that is not 1 or a prime power can be written uniquely as the product of distinct prime powers, in which case λ of the product is the least common multiple of the λ of the prime power factors.

  8. Low-density parity-check code - Wikipedia

    en.wikipedia.org/wiki/Low-density_parity-check_code

    In this matrix, each row represents one of the three parity-check constraints, while each column represents one of the six bits in the received codeword. In this example, the eight codewords can be obtained by putting the parity-check matrix H into this form [ − P T | I n − k ] {\displaystyle {\begin{bmatrix}-P^{T}|I_{n-k}\end{bmatrix ...

  9. Idempotent matrix - Wikipedia

    en.wikipedia.org/wiki/Idempotent_matrix

    [1] [2] That is, the matrix is idempotent if and only if =. For this product A 2 {\displaystyle A^{2}} to be defined , A {\displaystyle A} must necessarily be a square matrix . Viewed this way, idempotent matrices are idempotent elements of matrix rings .