47 lines
1.4 KiB
R
47 lines
1.4 KiB
R
% Generated by roxygen2: do not edit by hand
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% Please edit documentation in R/difft.R
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\docType{class}
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\name{VT.difft}
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\alias{VT.difft}
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\title{Difference between twins}
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\description{
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A reference class to represent difference between twin1 and twin2
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}
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\details{
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Difft are calculated depending on the favorable outcome chosen. It is the
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second level of the outcome. For example, if the outcome is 0 and 1, the
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favorable outcome is 1. Then, \deqn{difft_i = twin1_i - twin2_i if T_i = 1}
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\deqn{ difft_i = twin2_i - twin1_i if T_i = 0}.
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So \emph{absolute} method is :
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\deqn{P(Y = 1 | T = 1) - P(Y = 1 | T =0)}
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So \emph{relative} method is :
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\deqn{P(Y = 1 | T = 1)/P(Y = 1 | T =0)}
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So \emph{absolute} method is :
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\deqn{logit(P(Y = 1 | T = 1)) - logit(P(Y = 1 | T =0))}
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}
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\section{Fields}{
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\describe{
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\item{\code{vt.object}}{VT.object (refClass) representing data}
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\item{\code{twin1}}{vector of \eqn{E(Y|T = real treatment)}}
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\item{\code{twin2}}{vector of \eqn{E(Y|T = another treatment)}}
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\item{\code{method}}{Method available to compute difft : c("absolute", "relative",
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"logit"). Absolute is default value. See details.}
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\item{\code{difft}}{vector of difference between twin1 and twin2}
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}}
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\section{Methods}{
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\describe{
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\item{\code{computeDifft()}}{Compute difference between twin1 and twin2. See details.}
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}}
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\seealso{
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\code{\link{VT.forest}}, \code{\link{VT.forest.one}},
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\code{\link{VT.forest.double}}
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}
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