/**
* Return the economy domain z-values for the selected city and its average
* @param string $cityName name of the selected city
* @return array $cityValues it contains the z-values and a z-values average
*/
public function economyDomain($cityName)
{
if (isset($cityName)) {
if (strcmp($cityName, '') != 0) {
$economy = new EconomyController();
//Get the z-value for gross domestic product (GDP)
$cityGdp = $economy->cityGdp();
//Get the z-value for Gross value added (GVA)
$cityGva = $economy->cityGva();
//Get the z-value for amount of companies
$cityCompanies = $economy->cityCompanies();
$cityEconomyInfo = array("Número de estabelecimentos" => $cityCompanies[$cityName], "PIB" => $cityGdp[$cityName], "Valor Adicionado Bruto" => $cityGva[$cityName]);
$cityEconomyValues = CityProfileController::mergeAverage($cityEconomyInfo);
return $cityEconomyValues;
}
}
return 0;
}
/**
* It will calculate the average of the z-values for Economy
* @return return the average of z-values by key field of each city
*/
public function economyKeyField()
{
$economy = new EconomyController();
//Get the z-value for gross domestic product (GDP)
$cityGdp = $economy->cityGdp();
//Get the z-value for Gross value added (GVA)
$cityGva = $economy->cityGva();
//Get the z-value for amount of companies
$cityCompanies = $economy->cityCompanies();
//sum z-values
$sumZvalues = array_map(array($this, "sumCityValues"), $cityGdp, $cityGva, $cityCompanies);
//Divide the sum of z-values to obtain the z-values average of each city
$zValuesAvg = array_map(array($this, "divideKeyFields"), $sumZvalues, array_fill(0, count($sumZvalues), 3));
//combine the array keys(cities'name) with the average of z-values gotten
$zValuesAvg = array_combine(array_keys($cityCompanies), array_values($zValuesAvg));
return $zValuesAvg;
}
