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. Author manuscript; available in PMC: 2016 May 18.
Published in final edited form as: Stat Med. 2015 Jun 10;34(25):3298–3317. doi: 10.1002/sim.6553

Figure 1.

Figure 1

Example FP2 functions of the form f(x)=βo+β1xp1+β2xp2. The numbers in parentheses are values of (p1, p2) used to plot the curve.