Finish functional Crime Analysis

ActualMain.cpp

@@ -1,3 +1,5 @@
+#include <iostream>
+#include <ostream>
 #include <stdio.h>
 #include "Aufg1/forLoop.h"
 #include "Aufg2/GuestList.h"
@@ -9,4 +11,4 @@ int main() {
     // Aufg2Main();
     // Aufg3Main();
     Aufg4Main();
-}
+}

Aufg4/CrimeStats.cpp

@@ -4,17 +4,23 @@
 #include <fstream>
 
 #include "CrimeStats.h"
+
+#include <algorithm>
+#include <unordered_map>
+
 #include "../Aufg2/GuestList.h"
 
-// cdatetime,
-// address,
-// district,
-// beat,
-// grid,
-// crimedescr,
-// ucr_ncic_code,
-// latitude,
-// longitude,
+/*
+* # Aufgabe 2
+* Erstelle ein Objekt, welches auf die Zeilen aus
+* der beigefügten CSV und lese diese ein
+* Beantworte die folgenden Fragen:
+* Wie viele Verbrechen gab es in Sacramento in 2006?
+* Was war das häufigste Verbrechen?
+* Welches ist der gefährlichste Desctrict? (gemessen an
+der Menge der Vorfälle?)
+* Welche Adressen kamen mehr als einmal vor
+*/
 
 void split(const std::string& s, char c,std::vector<std::string>& v) {
     std::string::size_type i = 0;
@@ -55,6 +61,19 @@ std::string readFile(std::string &fileName, std::vector<Crime*> &allCrimes) {
     return content;
 }
 
+bool isInVector(std::string &str, std::vector<std::string> *vec) {
+    bool found = false;
+
+    for (int i = 0; i < vec->size(); i++) {
+        if (str == (*vec)[i]) {
+            found = true;
+        }
+    }
+
+    return found;
+}
+
+
 Crime* stringToCrime(std::string &input) {
     std::vector<std::string> tokens;
     split(input, ',', tokens);
@@ -96,6 +115,87 @@ Crime* stringToCrime(std::string &input) {
     return thisCrime;
 }
 
+int CRIMESTATS::countCrimes() {
+    return crimes.size();
+}
+
+std::string CRIMESTATS::getMostCommonCrime() {
+    std::vector<std::string> crime;
+    std::vector<int> counter;
+
+    for (auto singleCrime : crimes) {
+        bool found = false;
+        for (int i = 0; i < crime.size(); ++i) {
+            if (singleCrime->crimedescription == crime[i]) {
+                counter[i] += 1;
+                found = true;
+            }
+        }
+        if (!found) {
+            crime.push_back(singleCrime->crimedescription);
+            counter.push_back(1);
+        }
+    }
+
+    auto maxElementIt = std::max_element(counter.begin(), counter.end());
+
+    int maxIndex = std::distance(counter.begin(), maxElementIt);
+    return crime[maxIndex];
+}
+
+std::string CRIMESTATS::getMostDangerousDistrict() {
+    std::vector<std::string> district;
+    std::vector<int> counter;
+
+    for (auto singleCrime : crimes) {
+        bool found = false;
+        for (int i = 0; i < district.size(); ++i) {
+            if (singleCrime->district == district[i]) {
+                counter[i] += 1;
+                found = true;
+            }
+        }
+        if (!found) {
+            district.push_back(singleCrime->district);
+            counter.push_back(1);
+        }
+    }
+
+    auto maxElementIt = std::max_element(counter.begin(), counter.end());
+
+    int maxIndex = std::distance(counter.begin(), maxElementIt);
+    return district[maxIndex];
+}
+
+std::vector<std::string> *CRIMESTATS::getDuplicateAdresses() {
+    // for crime
+    //      if crime.address in crimeAdresses
+    //          if adress not in result
+    //              result.add(crime.address)
+    //      else
+    //          crimeAdresses.add(crime.adress)
+    // return result
+    std::vector<std::string>* result = new std::vector<std::string>;
+    std::vector<std::string> breakInAdresses;
+
+    for (auto singleCrime: crimes) {
+        std::string address = singleCrime->address;
+        if (isInVector(address, &breakInAdresses)) {
+            if (!isInVector(address, result)) {
+                result->push_back(address);
+            }
+        }
+        else{
+            breakInAdresses.push_back(address);
+        }
+    }
+
+    return result;
+}
+
+
+
+
 void Aufg4Main() {
     std::string fileName = "../Aufg4/IO-Files/SacramentocrimeJanuary2006.csv";
     std::vector<Crime*> allCrimes;
@@ -103,6 +203,15 @@ void Aufg4Main() {
 
     // std::cout << content << std::endl << "EndOfFile" << std::endl;
 
+    std::cout << allCrimes.size() << std::endl;
     std::cout << allCrimes.at(2)->crimedescription << std::endl;
+    CRIMESTATS crimestats;
+    crimestats.crimes = allCrimes;
+    std::cout << "Number of Crimes         : " << crimestats.countCrimes() << std::endl;
+    std::cout << "Most Common Crime        : " << crimestats.getMostCommonCrime() << std::endl;
+    std::cout << "Most Dangerous District  : " << crimestats.getMostDangerousDistrict() << std::endl;
 
+    auto dupeAddresses = crimestats.getDuplicateAdresses();
+    std::cout << "Multi-Crime-Addresses    : " << dupeAddresses->size() << std::endl;
+    printAllInVector(*dupeAddresses);
 }

Aufg4/CrimeStats.h

@@ -15,6 +15,18 @@ typedef struct CRIME{
     std::string longitude;
 } Crime;
 
+class CRIMESTATS {
+    public:
+    std::vector<Crime*> crimes;
+    int countCrimes();
+    std::string getMostCommonCrime();
+    std::string getMostDangerousDistrict();
+
+    std::vector<std::string> *getDuplicateAdresses();
+};
+
+bool isInVector(std::string& str, std::vector<std::string>* vec);
+
 void split(const std::string& s, char c,std::vector<std::string>& v);
 
 void Aufg4Main();