  The quantum Hall effect is one of the most extensively studied topological
effects in solid state physics. The transitions between different quantum Hall
states exhibit critical phenomena described by universal critical exponents.
Numerous numerical finite size scaling studies have focused on the critical
exponent $\nu$ for the correlation length. In such studies it is important to
take proper account of irrelevant corrections to scaling. Recently, Dresselhaus
et al. [Phys. Rev. Lett. {\bf 129}, 026801(2022)] proposed a new scaling
ansatz, which they applied to the two terminal conductance of the
Chalker-Coddington model. In this paper their proposal is applied to our
previously reported data for the Lyapunov exponents of that model using both
polynomial fitting and Gaussian process fitting.
