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. 2021 Sep 21;24(2):227–243. doi: 10.1093/biostatistics/kxab018

Table 1.

True eigenfunctions in the simulation setting presented in Section 5. The function Inline graphic is the Inline graphicth cubic B-spline basis on Inline graphic, with 16 equally spaced interior knots, and Inline graphic when Inline graphic and is zero otherwise.

  Inline graphic Inline graphic Inline graphic
Inline graphic Inline graphic 0 0
Inline graphic 0 Inline graphic 0
Inline graphic 0 0 Inline graphic
Inline graphic 0 Inline graphic 0
Inline graphic 0 0 Inline graphic
Inline graphic Inline graphic Inline graphic Inline graphic