Table 2:
Statistics of Quadratic Fit to (Average) Hessian-Weighted Error as a Function of Stimulus Filter ($k$) and Postspike Filter ($h$) Heterogeneity.
HeterogeneityNetwork Size234567
$k$ $R2$ 0.0068 0.0019 0.0060 0.0191 0.0315 0.0401
$p$-value for $F$-statistic versus Constant $3.6×10-10$ 0.0022 $4.5×10-9$ $1.5×10-27$ $3.0×10-45$ $1.6×10-57$
$h$ $R2$ 0.0014 0.0020 0.0101 0.0171 0.0181 0.0356
$p$-value for $F$-statistic versus Constant 0.0032 $3.8×10-4$ $7.2×10-15$ $1.2×10-24$ $4.3×10-26$ $4.5×10-51$
HeterogeneityNetwork Size234567
$k$ $R2$ 0.0068 0.0019 0.0060 0.0191 0.0315 0.0401
$p$-value for $F$-statistic versus Constant $3.6×10-10$ 0.0022 $4.5×10-9$ $1.5×10-27$ $3.0×10-45$ $1.6×10-57$
$h$ $R2$ 0.0014 0.0020 0.0101 0.0171 0.0181 0.0356
$p$-value for $F$-statistic versus Constant 0.0032 $3.8×10-4$ $7.2×10-15$ $1.2×10-24$ $4.3×10-26$ $4.5×10-51$

Note: The numbers in bold correspond to quadratic fits where the optimal level of heterogeneity is not in the domain of heterogeneity.

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