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<?php
/**
* @package ProbabilityDistribution
*
* Script to test FDistribution methods
*/
require_once "../FDistribution.php";
require_once "make_table.php";
$f = new FDistribution(2, 27);
$Methods = array("getNumeratorDF", "getDenominatorDF", "PDF(2.05)","CDF(2.05)","ICDF(0.95)","RNG(1)");
$Output[0] = $f->getNumeratorDF();
$Output[1] = $f->getDenominatorDF();
$Output[2] = $f->PDF(2.05);
$Output[3] = $f->CDF(2.05);
$Output[4] = $f->ICDF(0.95);
$Output[5] = $f->RNG(1);
make_table("F Distribution(2, 27)", "Methods", "Output", $Methods, $Output);
// Test PDF function by feeding an array of $x_vals and
// getting a corresponding array of $p_vals.
$X_Vals = range(1, 5);
$P_Vals = $f->PDF($X_Vals);
make_table("PDF(X_VALS)", "X Vals Input", "P Vals Output", $X_Vals, $P_Vals);
// Test CDF function by feeding an array of $x_vals and getting
// a corresponding array of $p_vals where each p_val corresponds
// to p(x < $x_vals[$i])
$X_Vals = range(1, 5);
$P_Vals = $f->CDF($X_Vals);
make_table("CDF(X_VALS)", "X Vals Input", "P Vals Output", $X_Vals, $P_Vals);
// Test ICDF function by feeding in P_Vals from previous
// test. Result should be mirror of CDF output.
$X_Vals = $f->ICDF($P_Vals);
make_table("ICDF(P_VALS)", "P Vals Input", "X Vals Output", $P_Vals, $X_Vals);
// Test RNG function by passing the number of values you want generated.
// Result is an array of random numbers from a Fisher F distribution
$Counter = range(0, 7);
$Rnd_Vals = $f->RNG(8);
make_table("RNG(N_VALS)", "Counter", "Rnd Vals", $Counter, $Rnd_Vals);
?>