Description Usage Arguments Value Examples
med_reg
Gives controlled direct effect, natural indirect effect, natural direct effect using regression-based formulas
affording the best statistical power. The procedure is described in chapter 3.1.1 of Tyler's book
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df |
Data frame |
X |
exposure, can be continuous or categorical |
M |
mediator, must be continuous for the moment |
Y |
outcome, must be continuous for the moment |
C |
confounders of exposure-outcome or mediator-outcome association. Can take any form |
noint |
supress exposure-mediator interaction term |
mlvl |
vector of values at which to compute a controlled direct effect |
delta |
whether the delta method should be used to get confidence intervals |
ref |
referent level of exposure, 0 by default |
treat |
treatment level of exposure, 1 by default |
a list composed of the natural direct effect, natural indirect effect, total effect, and a controlled
direct effect for each line given in mlvl
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