mcsample: Internal function for function 'beffect()'
In jiezhou-2/imediation: Individual Mediation Analysis

Internal function for function beffect()

1	mcsample(mcov, mintercept, BB, index, u, size)

`mcov`	is the variance matrix of error in mediator model
`minterceptis`	the estimated intercept in mediator model
`BB`	is the estimated state transition matrix
`index`	is the mediator of interest
`u`	is the state vector
`size`	is the number of observations to simulate.