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gaussianRing(...,sVariableName=>...) -- symbol used for indeterminates in a ring of Gaussian joint probability distributions

Description

The option gaussianRing(G,sVariableName=>t) changes the symbol used for intedeterminates in the covariance matrix in a polynomial ring created with gaussianRing.

i1 : R = gaussianRing 4

o1 = R

o1 : PolynomialRing
i2 : gens R

o2 = {s   , s   , s   , s   , s   , s   , s   , s   , s   , s   }
       1,1   1,2   1,3   1,4   2,2   2,3   2,4   3,3   3,4   4,4

o2 : List
i3 : Rnew=gaussianRing(4,sVariableName => "t")

o3 = Rnew

o3 : PolynomialRing
i4 : gens Rnew

o4 = {t   , t   , t   , t   , t   , t   , t   , t   , t   , t   }
       1,1   1,2   1,3   1,4   2,2   2,3   2,4   3,3   3,4   4,4

o4 : List

Functions with optional argument named sVariableName:

Further information

  • Default value: s
  • Function: gaussianRing -- ring of Gaussian correlations on n random variables or a graphical model
  • Option key: sVariableName -- optional input to choose the variable names for the covariance matrix

The source of this document is in GraphicalModels.m2:2723:0.