This function evaluates the specified B-spline defined on the
unit interval, when considering n.if.per.cov
B-splines. Currently, the
implementation is based on the one in Andrews, Shi 2013 (supplementary
materials).
Bspline.unit.interval(x, spline.index, n.if.per.cov, degree = 3)
value inside the unit interval at which to evaluate the spline.
Index of the spline to evaluate.
Number of B-splines to consider over the unit interval.
Degree of the B-splines. Default is degree = 3
.
Andrews, D.W.K. and Shi, X. (2013). Inference based on confitional moment inequalities. Econometrica. 81(2):609-666.