/**
* Metoda obliczaj¹ca jaki procent ankietowanych wybra³ odpowiedni¹ odpowiedŸ w konkretnym
* pytaniu.
*
* @param surveys
* @param questionNumber
* @return
*/
public List<Float> getPrecentageOfChoosedOptions(List<Survey> surveys, int questionNumber) {
List<Float> lista = new ArrayList<Float>();
HashMap<String, Integer> mapa = new HashMap<String, Integer>();
List<String> answers = new ArrayList<String>();
// inincjalizujemy mozliwe odpowiedzi w Hashmapie
answers = surveys.get(0).getQuestion(questionNumber).getAnswersAsStringList();
for (String answer : answers) {
mapa.put(answer, 0);
}
for (Survey survey : surveys) {
int typeQuestion = survey.getQuestion(questionNumber).getQuestionType();
if (typeQuestion == 0 || typeQuestion == 1) {
if (survey.isFinished() && survey.getQuestion(questionNumber).isAnswered()) {
List<String> userAnswers = new ArrayList<String>();
userAnswers = survey.getQuestion(questionNumber).getUserAnswersAsStringList();
for (String userAnswer : userAnswers) {
mapa.put(userAnswer, mapa.get(userAnswer) + 1);
}
}
}
}
for (HashMap.Entry<String, Integer> entr : mapa.entrySet()) {
float percent = (float) 100 * entr.getValue() / surveys.size();
lista.add(percent);
}
return lista;
}
/**
* Metoda zwraca najczêœciej udzielan¹ odpowiedŸ dla wybranego pytania, które pochodzi z pewnego
* rodzaju ankiety.
*
* @param surveys
* @param questionNumber
* @return
*/
public float getMode(List<Survey> surveys, int questionNumber) {
float mode = 0;
int answer = 0;
HashMap<Integer, Integer> mapa = new HashMap<Integer, Integer>();
for (Survey survey : surveys) {
if (survey.isFinished() && survey.getQuestion(questionNumber).isAnswered()) {
int typeQuestion = survey.getQuestion(questionNumber).getQuestionType();
if (typeQuestion == 5) {
ScaleQuestion quest = (ScaleQuestion) survey.getQuestion(questionNumber);
if (mapa.containsKey(quest.getUserAnswer())) {
mapa.put(quest.getUserAnswer(), mapa.get(quest.getUserAnswer()) + 1);
} else {
mapa.put(quest.getUserAnswer(), 1);
}
}
}
}
for (HashMap.Entry<Integer, Integer> entr : mapa.entrySet()) {
if (mode < entr.getValue()) {
mode = entr.getValue();
answer = entr.getKey();
}
}
return answer;
}
public int getNumberUsersAnswers(List<Survey> surveys, int numberOfQuestion) {
int number = 0;
for (Survey survey : surveys) {
if (survey.getQuestion(numberOfQuestion).isAnswered()) {
number++;
}
}
return number;
}
/**
* Metoda zwraca liczbê wype³nionych ankiet.
*
* @param surveys
* @return
*/
public int getAmountOfFilledSurveys(List<Survey> surveys) {
int amount = 0;
if (surveys != null) {
for (Survey survey : surveys) {
if (survey.getFinishTime() != null) {
amount += 1;
}
}
return amount;
} else {
return 0;
}
}
/**
* Metoda zwraca œredni¹ liczbê zebranych ankiet przez ankietera na dzieñ, od wybranego dnia,
* liczone s¹ dni, w których pracowa³
*
* @param surveys
* @param interviewer
* @param from
* @return
*/
public float getMeanFilledSurveysOnADay(
List<Survey> surveys, Interviewer interviewer, GregorianCalendar from) {
float mean;
float days = numberOfDaysInWork(interviewer, from);
long numberOfSurveys = 0;
for (Survey survey : surveys) {
if (survey.getFinishTime().compareTo(from) >= 0) {
numberOfSurveys += 1;
}
}
mean = numberOfSurveys / days;
return mean;
}
/**
* Metoda zwraca œredni¹ liczbê zebranych ankiet przez ankietera na dzieñ w ci¹gu okresu, wktórym
* pracowa³
*
* @param surveys
* @param interviewer
* @return
*/
public float getMeanFilledSurveysOnADay(List<Survey> surveys, Interviewer interviewer) {
float mean;
float days = numberOfDaysInWork(interviewer);
long numberOfSurveys = 0;
if (surveys != null) {
for (Survey survey : surveys) {
if (survey.getFinishTime() != null) {
numberOfSurveys += 1;
}
}
mean = numberOfSurveys / days;
return mean;
} else {
return 0;
}
}
/**
* Metoda zwraca mapê, która zawiera jako klucze poszczególne dni w których ankieter zebra³ jakieœ
* ankiety, zaœ wartoœciami s¹ liczby zebranych ankiet w tym dniu.
*
* @param surveys
* @param interviewer
* @return
*/
public HashMap<GregorianCalendar, Integer> getAmountOfFilledSurveysInDays(
List<Survey> surveys, Interviewer interviewer) {
HashMap<GregorianCalendar, Integer> filledSurveysInDays =
new HashMap<GregorianCalendar, Integer>();
for (Survey survey : surveys) {
GregorianCalendar data = survey.getFinishTime();
int year = data.get(Calendar.YEAR);
int month = data.get(Calendar.MONTH);
int day = data.get(Calendar.DAY_OF_MONTH);
GregorianCalendar date = new GregorianCalendar(year, month, day);
if (!filledSurveysInDays.containsKey(date)) {
filledSurveysInDays.put(date, 1);
} else {
filledSurveysInDays.put(date, filledSurveysInDays.get(date) + 1);
}
}
return filledSurveysInDays;
}
/**
* Metoda zwraca maksymaln¹ otrzyman¹ odpowiedŸ dla pytania skala pochodz¹cego z jakiegoœ rodzaju
* ankiet.
*
* @param surveys
* @param questionNumber
* @return
*/
public float getMaxValue(List<Survey> surveys, int questionNumber) {
float max = 0;
List<Integer> lista = new ArrayList<Integer>();
for (Survey survey : surveys) {
if (survey.isFinished()) {
int typeQuestion = survey.getQuestion(questionNumber).getQuestionType();
if (typeQuestion == 5) {
if (survey.getQuestion(questionNumber).isAnswered()) {
ScaleQuestion quest = (ScaleQuestion) survey.getQuestion(questionNumber);
lista.add(quest.getUserAnswer());
}
}
}
}
Collections.sort(lista);
max = lista.get(lista.size() - 1);
return max;
}
/**
* Metoda zwraca medianê dla wybranego pytania typu skala dla konkretego rodzaju ankiety.
*
* @param surveys
* @param questionNumber
* @return
*/
public float getMedian(List<Survey> surveys, int questionNumber) {
float median;
List<Integer> lista = new ArrayList<Integer>();
for (Survey survey : surveys) {
if (survey.isFinished() && survey.getQuestion(questionNumber).isAnswered()) {
int typeQuestion = survey.getQuestion(questionNumber).getQuestionType();
if (typeQuestion == 5) {
ScaleQuestion quest = (ScaleQuestion) survey.getQuestion(questionNumber);
lista.add(quest.getUserAnswer());
}
}
}
Collections.sort(lista);
int middle = lista.size() / 2;
if (lista.size() % 2 == 1) {
median = lista.get(middle);
} else {
median = (float) ((lista.get(middle - 1) + lista.get(middle)) / 2.0);
}
return median;
}
/**
* Metoda zwraca odchylenie standardowe dla wybranego pytania z konkretego rodzaju ankiety.
*
* @param surveys
* @param questionNumber
* @return
*/
public double getStandardDeviation(List<Survey> surveys, int questionNumber) {
int answers = 0;
float variance = 0;
double mean = getMean(surveys, questionNumber);
for (Survey survey : surveys) {
if (survey.isFinished() && survey.getQuestion(questionNumber).isAnswered()) {
int typeQuestion = survey.getQuestion(questionNumber).getQuestionType();
if (typeQuestion == 5) {
ScaleQuestion quest = (ScaleQuestion) survey.getQuestion(questionNumber);
variance += Math.pow((quest.getUserAnswer() - mean), 2);
answers += 1;
}
}
}
double standardDeviation;
if (answers != 0) {
standardDeviation = Math.sqrt(variance / answers);
} else {
standardDeviation = -1;
}
return standardDeviation;
}
/**
* Metoda zwraca œredni¹ dla pewnego numeru pytania, które pochodzi z wybranego rodzaju ankiety.
*
* @param surveys
* @param number
* @return
*/
public double getMean(
List<Survey> surveys, int number) { // pamiêtaj o indeksowaniu pytañ w survey
float sum = 0;
int answers = 0; // liczba odpowiedzi na wybrane pytanie
for (Survey survey : surveys) {
if (survey.isFinished() && survey.getQuestion(number).isAnswered()) {
int typeQuestion = survey.getQuestion(number).getQuestionType();
// System.out.println("Typ pytania " + typeQuestion);
if (typeQuestion == 5) {
ScaleQuestion question = (ScaleQuestion) survey.getQuestion(number);
// System.out.println("OdpowiedŸ: " + question.getUserAnswer());
sum += question.getUserAnswer();
answers += 1;
}
}
}
if (answers != 0) {
// System.out.println("Suma i liczba odpowiedzi " + sum +" "+answers);
return (double) sum / answers;
} else {
return 0;
}
}
public List<Pair<String, Integer>> getNumbersOfFilledSurveysByMac(List<Survey> surveys) {
List<Pair<String, Integer>> map = new ArrayList<Pair<String, Integer>>();
String mac;
for (Survey survey : surveys) {
String w = survey.getDeviceId().substring(0, 17);
;
if (map.size() == 0) {
Pair<String, Integer> pair = new Pair();
pair.setFirst(w);
// System.out.println("Device id: "+sw);
pair.setSecond(1);
map.add(pair);
} else {
for (Pair<String, Integer> para : map) {
if (para.getFirst().equals(w)) {
para.setSecond(para.getSecond() + 1);
}
}
}
boolean ster = true;
for (Pair<String, Integer> para : map) {
if (para.getFirst().equals(w)) {
ster = false;
}
}
if (ster) {
Pair<String, Integer> pair = new Pair();
pair.setFirst(w);
pair.setSecond(1);
map.add(pair);
}
}
/*for(Pair<String, Integer> para : map){
System.out.println("obiekty: "+ para.getFirst() + " "+para.getSecond());
}*/
return map;
}
/**
* Metoda zwraca œredni¹ dla wybranego pytania z pewnego rodzaju ankiety.
*
* @param surveys
* @param question
* @return
*/
public double getMean(
List<Survey> surveys, Question question) { // pamiêtaj o indeksowaniu pytañ w survey
float sum = 0;
int answers = 0; // liczba odpowiedzi na wybrane pytanie
for (Survey survey : surveys) {
if (survey.isFinished()
&& survey.getQuestion(survey.indexOfQuestion(question)).isAnswered()) {
int numberOfQuestion = survey.indexOfQuestion(question);
int typeQuestion = survey.getQuestion(numberOfQuestion).getQuestionType();
if (typeQuestion == 5) {
ScaleQuestion quest = (ScaleQuestion) survey.getQuestion(numberOfQuestion);
sum += quest.getUserAnswer();
answers += 1;
}
}
}
if (answers != 0) {
return (double) sum / answers;
} else {
return -1;
}
}
public List<Pair<String, Integer>> getTheMostFrequentAnswers(
List<Survey> surveys, int numberOfQuestion) {
List<Pair<String, Integer>> lista = new ArrayList<Pair<String, Integer>>();
for (Survey survey : surveys) {
int typeQuestion = survey.getQuestion(numberOfQuestion).getQuestionType();
if (typeQuestion == 6 || typeQuestion == 7 || typeQuestion == 4) {
if (survey.getQuestion(numberOfQuestion).isAnswered()) {
String ans = "";
// = survey.getQuestion(numberOfQuestion).getUserAnswersAsStringList();
if (typeQuestion == 6) {
ans =
getDateQuestionAsString(
survey.getQuestion(numberOfQuestion).getUserAnswersAsStringList());
}
if (typeQuestion == 4) {
ans =
getTextQuestionAsString(
survey.getQuestion(numberOfQuestion).getUserAnswersAsStringList());
}
if (typeQuestion == 7) {
ans =
getTimeQuestionAsString(
survey.getQuestion(numberOfQuestion).getUserAnswersAsStringList());
// System.out.println("OdpowiedŸ time: " +
// survey.getQuestion(numberOfQuestion).getUserAnswersAsStringList());
}
if (lista.isEmpty()) {
Pair<String, Integer> couple = new Pair<String, Integer>();
couple.setFirst(ans);
couple.setSecond(1);
lista.add(couple);
} else {
boolean ster = true;
for (Pair<String, Integer> pair : lista) {
if (pair.getFirst().equals(ans)) {
pair.setSecond(pair.getSecond() + 1);
ster = false;
break;
}
}
if (ster) {
Pair<String, Integer> coup = new Pair<String, Integer>();
coup.setFirst(ans);
coup.setSecond(1);
lista.add(coup);
}
}
}
}
if (typeQuestion == 3) {
if (survey.getQuestion(numberOfQuestion).isAnswered()) {
// String ans = "";
List<String> answers = survey.getQuestion(numberOfQuestion).getUserAnswersAsStringList();
// System.out.println("Odpowiedx grid: "+
// survey.getQuestion(numberOfQuestion).getUserAnswersAsStringList());
for (String ans : answers) {
if (lista.isEmpty()) {
Pair<String, Integer> couple = new Pair<String, Integer>();
couple.setFirst(ans);
couple.setSecond(1);
lista.add(couple);
} else {
boolean ster = true;
for (Pair<String, Integer> pair : lista) {
if (pair.getFirst().equals(ans)) {
pair.setSecond(pair.getSecond() + 1);
ster = false;
break;
}
}
if (ster) {
Pair<String, Integer> coup = new Pair<String, Integer>();
coup.setFirst(ans);
coup.setSecond(1);
lista.add(coup);
}
}
}
}
}
}
lista.sort(
new Comparator<Pair<String, Integer>>() {
public int compare(Pair<String, Integer> o1, Pair<String, Integer> o2) {
if (o1.getSecond() > o2.getSecond()) {
return -1;
} else if (o1.getSecond().equals(o2.getSecond())) {
return 0; // You can change this to make it then look at the
// words alphabetical order
} else {
return 1;
}
}
});
return lista;
}