calculate_theta: calculate_theta

In jpkrooney/rcorex: An Implementation of Total Correlation Explanation

calculate_theta

Description

Internal function to calculate parameters for each dimension of each hidden variable

Usage

calculate_theta(
  data,
  p_y_given_x_3d,
  marginal_description,
  smooth_marginals,
  dim_visible = NULL
)

Arguments

data	Data provided by user
p_y_given_x_3d	A 3D array of numerics in range (0, 1), that represent the probability that each observed x variable belongs to n_hidden latent variables of dimension dim_hidden. p_y_given_x_3d has dimensions (n_hidden, n_samples, dim_hidden).
marginal_description	Character string which determines the marginal distribution of the data. single marginal description applies to all variables in biocorex
smooth_marginals	Boolean (TRUE/FALSE) which indicates whether Bayesian smoothing of marginal estimates should be used.
dim_visible	The dimension of the data provided in data - i.e. the number of discrete levels that exist in the data. Must be positive integer.

Details

This function is calls functions estimate_parameters_gaussian or estimate_parameters_discrete depending on the marginal_description.

Value

Returns a list of estimated parameters. The list has length = number of columns in the supplied data. The elements of the returned list depend on the marginal_description as follows:

• If the marginal description is "gaussian" a list of 2 arrays the first of which represent the estimate means, the second the estimated standard deviations. Each of these lists will have dimensions (n_hidden, dim_hidden).

• If the marginal description is "discrete", each element contains a list of length...

jpkrooney/rcorex documentation built on July 25, 2022, 1:37 a.m.