causaleffect (version 1.3.15)

get.expression: Get the expression of a probability object

Description

This function converts an object of class probability returned by aux.effect, causal.effect, generalize, meta.transport, recover or transport with expr = FALSE into a string which represents the probability distribution. Currently only LaTeX syntax is available.

Usage

get.expression(x, primes = FALSE)

Value

A character string that describes the resulting distribution in LaTeX syntax.

Arguments

x

An object of class probability which is an internal list structure describing the interventional distribution.

primes

A logical value. If TRUE, prime symbols are appended to summation variables to make them distinct from their other instantiations.

Author

Santtu Tikka

See Also

aux.effect, causal.effect, generalize, meta.transport, recover, transport

Examples

library(igraph)

# simplify = FALSE to allow multiple edges
g <- graph.formula(X -+ Y, Z -+ X, Z -+ Y , X -+ Z, Z -+ X, simplify = FALSE) 

# Here the bidirected edge between X and Z is set to be unobserved in graph g
# This is denoted by giving them a description attribute with the value "U"
# The edges in question are the fourth and the fifth edge
g <- set.edge.attribute(graph = g, name = "description", index = c(4,5), value = "U") 

x <- causal.effect(y = "Y", x = "X", z = NULL, G = g, expr = FALSE)
get.expression(x, primes = FALSE)
get.expression(x, primes = TRUE)