Exemplos de prob em PHP

Exemplo n.º 1

Arquivo: fkt_alfabet.php Projeto: fschell/cryptool-online

function alfabetAnalyse($codtxt, $alfa)
{
    global $AP, $ks_hilf;
    $alfahier = @hauf($codtxt);
    for ($t = 0; $t < sizeof($alfahier); $t++) {
        $p[] = 100 * prob($alfahier[$t], strlen($codtxt));
    }
    $alfahier = $p;
    $VX = varianz($AP[de]);
    $SX = sqrt(varianz($AP[de]));
    $VY = varianz($alfahier);
    $SY = sqrt(varianz($alfahier));
    $cov = covarianz($AP[de], $alfahier);
    $r = @abs($cov / sqrt($VX * $VY));
    for ($t = 0; $t < sizeof($alfa); $t++) {
        $ba1 .= "<img src={$ks_hilf['pfad']}/image/letter" . $t . ".gif border=0><img src={$ks_hilf['pfad']}/image/bar0.jpg width=3 border=0>";
        $ba2 .= "<img src={$ks_hilf['pfad']}/image/letter" . ($t + $rotv) % sizeof($alfa) . ".gif border=0><img src={$ks_hilf['pfad']}/image/bar0.jpg width=3 border=0>";
    }
    $lang_normalalphabet = JTEXT::_('NORMALALPHABET');
    $lang_STATISTICALDATA = JTEXT::_('STATISTICALDATA');
    $lang_VARIANCE = JTEXT::_('VARIANCE');
    $lang_DEFAULTABWEICHUNG = JTEXT::_('DEFAULTABWEICHUNG');
    $lang_CURRENTALPHABET = JTEXT::_('CURRENTALPHABET');
    $lang_SIGNS = JTEXT::_('SIGNS');
    $lang_ENTROPY = JTEXT::_('ENTROPY');
    $out .= '<table border=0><tr><td>
            <b>' . $lang_normalalphabet . '</b><br>' . $lang_STATISTICALDATA . ':<br>' . '<br>' . $lang_VARIANCE . ': ' . round($VX, 5) . '<br>' . $lang_DEFAULTABWEICHUNG . ':  ' . round($SX, 5) . '</td><td valign=middle>' . showakt($AP[de], 50, 1, 5, 3, 0) . '<center><div class=text7 >' . $ba1 . '</div></center>' . '</td></tr>' . '<tr><td>' . '<br><b>' . $lang_CURRENTALPHABET . '</b><br>' . $lang_STATISTICALDATA . ':<br>' . '<br>' . $lang_VARIANCE . ':    ' . round($VY, 5) . '<br>' . $lang_DEFAULTABWEICHUNG . ':     ' . round($SY, 5) . '<br>' . '</td><td valign=middle><br>' . showakt($alfahier, 50, 1, 5, 3, 0) . '<center><div class=text7 >' . $ba2 . '</div></center>' . '</td></tr><tr><td>' . '<br>' . $lang_SIGNS . ':    ' . strlen($codtxt) . '<br>' . $lang_ENTROPY . ':   ' . round(entropie($codtxt), 5) . '</td></tr></table>';
    return $out;
}

Exemplo n.º 2

Arquivo: program.php Projeto: nubs/tolgolf

function prob($sides, $number, $value)
{
	if ( $number == 1 )
	{
		if ( $value > 0 && $value <= $sides )
			return 1.0/$sides;
		else
			return 0.0;
	}

	$sum = 0;
	for ( $i=1; $i<=$value-1; $i++ )
		$sum += prob($sides, 1, $i) * prob($sides, $number-1, $value-$i);

	return $sum;
}

Exemplo n.º 3

Arquivo: fkt_statistik.php Projeto: fschell/cryptool-online

function entropie($text)
{
    # binärer Informationsgehalt, bezogen auf den Standardzeichensatz
    global $alfa;
    $hauf = hauf($text);
    for ($t = 0; $t < count($hauf); $t++) {
        $p = prob($hauf[$t], strlen($text));
        if ($p > 0) {
            $z = $p * log($p) / log(2);
        } else {
            $z = 0;
        }
        $ent = $ent + $z;
    }
    $ent = -$ent;
    return $ent;
}

Exemplo n.º 4

Arquivo: fkt_alfabet.php Projeto: fschell/cryptool-online

function alfabetAnalyse($codtxt, $alfa)
{
    global $AP, $ks_hilf;
    $alfahier = @hauf($codtxt);
    for ($t = 0; $t < sizeof($alfahier); $t++) {
        $p[] = 100 * prob($alfahier[$t], strlen($codtxt));
    }
    $alfahier = $p;
    $VX = varianz($AP[de]);
    $SX = sqrt(varianz($AP[de]));
    $VY = varianz($alfahier);
    $SY = sqrt(varianz($alfahier));
    $cov = covarianz($AP[de], $alfahier);
    $r = @abs($cov / sqrt($VX * $VY));
    for ($t = 0; $t < sizeof($alfa); $t++) {
        $ba1 .= "<img src={$ks_hilf['pfad']}/image/letter" . $t . ".gif border=0><img src={$ks_hilf['pfad']}/image/bar0.jpg width=3 border=0>";
        $ba2 .= "<img src={$ks_hilf['pfad']}/image/letter" . ($t + $rotv) % sizeof($alfa) . ".gif border=0><img src={$ks_hilf['pfad']}/image/bar0.jpg width=3 border=0>";
    }
    $out .= '<table border=0><tr><td>
            <b>Normales Alfabet</b><br>Statistische Daten:<br>' . '<br>Varianz: ' . round($VX, 5) . '<br>StdAbw:  ' . round($SX, 5) . '</td><td valign=middle>' . showakt($AP[de], 50, 1, 5, 3, 0) . '<center><div class=text7 >' . $ba1 . '</div></center>' . '</td></tr>' . '<tr><td>' . '<br><b>vorliegendes Alfabet</b><br>Statistische Daten:<br>' . '<br>Varianz:    ' . round($VY, 5) . '<br>StdAbw:     ' . round($SY, 5) . '<br>' . '</td><td valign=middle><br>' . showakt($alfahier, 50, 1, 5, 3, 0) . '<center><div class=text7 >' . $ba2 . '</div></center>' . '</td></tr><tr><td>' . '<br>Zeichen:    ' . strlen($codtxt) . '<br>Entropie:   ' . round(entropie($codtxt), 5) . '<br>KI-Index:   ' . round(koinzidenzIndex($codtxt), 5) . '</td><td>' . '<br>GV-Maß1:    ' . round(gvmass($codtxt, $alfahier), 5) . '<br>GV-Maß2:    ' . round(gvmass2($codtxt, $alfahier), 5) . '</td></tr></table><div class=text10><br>Kovarianz:  ' . round($cov, 5) . '<br>KorrKoeff:  ' . round($r, 5) . '</div>';
    return $out;
}