private function logResample($in, $uhgm) { $min = min(min($in->xs), $uhgm / 10); $max = max(max($in->xs), $uhgm * 10); $out = new XY_Series(); $out->xs = RTGM_Util::buildLogSequence($min, $max, self::UPSAMPLING_FACTOR, true); $out->ys = RTGM_Util::findLogLogYArrays($in->xs, $in->ys, $out->xs); return $out; }