/**
* Compute F(H) for all assessment regarding criteria and alternatives
* Use this value to compute the dominance degree
* It uses aggregationHFLWA($data, $weights, $granularity) from "Operators and Comparisons of Hesitant Fuzzy Linguistic Term Sets"
*/
private function crossAlternativesWithCriteria()
{
$length = $delta = 0;
$criterionScore = array();
//score of assessment of several experts about a single criterion. Temporal array
$criterionAssessment = array();
//what several experts say about a single criterion. Temporal array
for ($i = 0; $i < $this->N; $i++) {
for ($j = 0; $j < $this->M; $j++) {
if ($this->debug) {
echo $this->data[$i * $this->P]["ref"] . " - C" . $j;
}
//Aggregate hesitants given from experts for each criterion and alternative
//if we compute F for each hesitant the average F is <> from the score of aggregate hesitant
//case: [5,5] F=5; [5,6] F=5.4375; [5,6] F=5.4375; [5,5] F=5; avgF=5.21875 vs avg hesitant = {5} and F_H=5
for ($k = 0; $k < $this->P; $k++) {
$c = $i * $this->P + $k;
//index to get assessments - system_message("#".$c);
$inf = "L" . ($j + 1);
$sup = "U" . ($j + 1);
$criterionAssessment[$k] = array("inf" => $this->data[$c][$inf], "sup" => $this->data[$c][$sup]);
if ($this->debug) {
//echo " - E_" . $this->data[$c]['co_codigo'];
echo " [" . $this->data[$c][$inf] . "," . $this->data[$c][$sup] . "], ";
}
}
$avgH_Cj = parent::aggregate($criterionAssessment, true);
//-..-..-..-..-..-..-..-..-..-..-..--..-..-..-..-..-..-..-..-..-..-..--..-..-..-..-..-..-..-..-..-..-..-
$this->hesitants[$i][$j] = $avgH_Cj;
//store the aggretate hesitant and compute its length and delta
if ($this->hesitants[$i][$j] == -1) {
register_error("wrong hesitant in cross function ");
}
//echo('hesitant<pre>'); print_r($avgH_Cj); echo('</pre><br>');
$length = count($avgH_Cj);
//number of terms in the hesitant
$delta = deltaHesitant($avgH_Cj);
$F_H = $this->scoreFunction($avgH_Cj, $length, $delta);
if ($this->debug) {
echo " => L=" . $length . " d=" . $delta . " & F(avgH) = " . $F_H . "<br>";
}
$this->score[$i][$j] = $F_H;
//store the score function of hte aggregate hesitant
}
}
//check cases ((like with one expert assessment))
for ($j = 0; $j < $this->M; $j++) {
if ($this->debug) {
echo "C" . ($j + 1);
}
for ($i = 0; $i < $this->N; $i++) {
for ($k = 0; $k < $this->N; $k++) {
if ($i == $k) {
$this->dominance[$i][$k][$j] = 0;
} else {
if ($this->score[$i][$j] == $this->score[$k][$j]) {
$this->dominance[$i][$k][$j] = 0;
} else {
if ($this->score[$i][$j] > $this->score[$k][$j]) {
$this->dominance[$i][$k][$j] = $this->dominanceDegreeCaseOver($i, $j, $k);
} else {
$this->dominance[$i][$k][$j] = $this->dominanceDegreeCaseUnder($i, $j, $k);
}
}
}
if ($this->debug) {
$a = $i * $this->P;
$b = $k * $this->P;
echo " (" . $this->data[$a]["ref"] . "," . $this->data[$b]["ref"] . ") -> " . $this->dominance[$i][$k][$j];
}
}
if ($this->debug) {
echo "<br> ";
}
}
if ($this->debug) {
echo "<br>";
}
}
}
private function crossAlternativesWithCriteria()
{
$length = $delta = 0;
$criterionScore = array();
//score of assessment of several experts about a single criterion. Temporal array
$criterionAssessment = array();
//what several experts say about a single criterion. Temporal array
for ($i = 0; $i < $this->N; $i++) {
for ($j = 0; $j < $this->M; $j++) {
if ($this->debug) {
echo $this->data[$i * $this->P]["ref"] . " - C" . $j;
}
//Aggregate hesitants given from experts for each criterion and alternative
for ($k = 0; $k < $this->P; $k++) {
$c = $i * $this->P + $k;
//index to get assessments - system_message("#".$c);
$inf = "L" . ($j + 1);
$sup = "U" . ($j + 1);
$criterionAssessment[$k] = array("inf" => $this->data[$c][$inf], "sup" => $this->data[$c][$sup]);
if ($this->debug) {
//" - E_" . $this->data[$c]['co_codigo']
echo " [" . $this->data[$c][$inf] . "," . $this->data[$c][$sup] . "], ";
}
}
$avgH_Cj = parent::aggregate($criterionAssessment, true);
//-..-..-..-..-..-..-..-..-..-..-..--..-..-..-..-..-..-..-..-..-..-..--..-..-..-..-..-..-..-..-..-..-..-
$this->hesitants[$j][$i] = $avgH_Cj;
//store the aggretate hesitant and compute its length and delta
if ($this->hesitants[$j][$i] == -1) {
register_error("wrong hesitant in cross function");
}
//echo('# aggregate: <pre>'); print_r($avgH_Cj); echo('</pre>');
$length = count($avgH_Cj);
//number of terms in the hesitant
$delta = deltaHesitant($avgH_Cj);
//store the score function of the aggregate hesitant
$this->score[$j][$i] = $delta;
//similar to mean in statistics
$this->variance[$j][$i] = $this->varianceFunction($avgH_Cj, $length);
if ($this->debug) {
echo " => L=" . $length . " delta=score(avgH)=" . $delta . " & variance(avgH) = " . $this->variance[$j][$i] . "<br>";
}
}
}
}