/** * Returns the inverse survival function, the inverse of the sf * * @param float $x The test value * @return float The value that gives an sf of $x */ public function isf($x) { return $this->calculator->getIsf($x, $this->lambda); }
/** * Returns the inverse survival function, the inverse of the sf * * @param float $x The test value * @return float The value that gives an sf of $x */ public function isf($x) { return $this->calculator->getIsf($x, $this->lambda); }