Comment on "Reconciliation of high-temperature series and renormalization-group results by suppressing confluent singularities"

We have used a slightly modified version of Roskies's quadratic map method [Phys. Rev. B 24, 5305 (1981)] to estimate the confluent correction amplitudes for the susceptibility $\chi$ and correlation length $\xi$ of a model that interpolates between Ising and Gaussian limits. Our best estimates for the corresponding leading exponents are $\gamma =1.237\mathrm{}\pm 0.003$, $\nu =0.630\mathrm{}\pm 0.003$, and $\eta =2-\frac{\gamma }{\nu }=0.036\mathrm{}\pm 0.002$. The correction to scaling amplitude ratio $\frac{B\left(\xi \right)}{B\left(\chi \right)}=0.8\mathrm{}\pm 0.1$ is slightly larger than that predicted from ${\phi }^4$ continuum model analysis [M.-c. Chang and A. Houghton, Phys. Rev. Lett. 44, 785 (1980) and C. Bagnuls and C. Bervillier, Phys. Rev. B 24, 1226 (1981)]