Description Usage Arguments Value
The user can declare that the unobservable enters into the MTRs in
the form of splines. This function generates the basis matrix for
the splines. The specifications for the spline must be passed as
the $splineslist
object generated by
removeSplines
. Note that this function does not
account for any interactions between the splines and the
covariates. Interactions can be added simply by sweeping the basis
matrix by a vector for the values of the covariates.
1  genBasisSplines(splines, x, d = NULL)

splines 
a list. The name of each element should be the
spline command, and each element should be a vector. Each entry
of the vector is a covariate that the spline should be
interacted with. Such an object can be generated by

x 
the values of the unobservable at which the splines basis should be evaluated. 
d 
either 0 or 1, indicating the treatment status. 
a matrix. The number of rows is equal to the length of
x
, and the number of columns depends on the
specifications of the spline. The name of each column takes the
following form: "u[d]S[j].[b]", where "u" and "S" are fixed and
stand for "unobservable" and "Splines" respectively. "[d]" will
be either 0 or 1, depending on the treatment status. "[j]" will
be an integer indicating which element of the list
splines
the column pertains to. "[b]" will be an integer
reflect which component of the basis the column pertains to.
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