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Data.java
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import java.io.* ;
import java.util.StringTokenizer ;
import java.util.ArrayList ;
public class Data {
private Features features ;
private String featureIsPresent = "T" ;
private ArrayList<ArrayList<String[]>> data ;
public Data(Features features) {
this.features = features ;
this.data = new ArrayList<ArrayList<String[]>>() ;
}
public void load(String fileName) {
FileReader fileReader ;
BufferedReader inputFile ;
String line, date, fields[] ;
String[] patient ;
for (int d=0 ; d<numberOfDays() ; d++) { data.add(new ArrayList<String[]>()) ; }
try {
fileReader = new FileReader(fileName) ;
inputFile = new BufferedReader(fileReader) ;
while ( (line=inputFile.readLine()) != null ) {
fields = line.split(" ") ;
if ( fields.length != features.numberOfFeatures()+1 ) { System.out.println( "ERROR: " + line ) ; }
date = fields[0] ;
patient = fields ;
data.get(day(date)).add(patient) ;
} // while
inputFile.close() ;
} catch (IOException e) {} ;
}
public int numberOfDays() { return dates.length ; }
public int numberOfPatients(int day) { return data.get(day).size() ; }
public int numberOfPatients(int day, int window) {
int total = 0 ;
for (int d=day ; d<day+window ; d++) { total += numberOfPatients(d) ; }
return total ;
}
public boolean patientHasFeature(int day, int patient, int feature) {
if ( data.get(day).get(patient)[feature+1].equals(featureIsPresent) ) return true ; else return false ;
}
public int numberOfPatientsWithFeature(int day, int feature) {
int total = 0 ;
for (int p=0 ; p<numberOfPatients(day) ; p++) { if ( patientHasFeature(day,p,feature) ) total++ ; }
return total ;
}
public int numberOfPatientsWithFeature(int day, int window, int feature) {
int total = 0 ;
for (int d=day ; d<day+window ; d++) total += numberOfPatientsWithFeature(d,feature) ;
return total ;
}
public double averageNumberOfPatients(int day, int window) {
int total = 0 ;
for (int d=day-(window/2) ; d<day+((window+1)/2) ; d++) {
total += numberOfPatients(Math.min(Math.max(d,0),numberOfDays()-1)) ;
}
return (double)total/(double)window ;
}
public int day(String date) {
for (int d=0 ; d<dates.length ; d++) { if ( dates[d].equals(date) ) return d ; }
return -1 ;
}
public String date(int day) { return dates[day] ; }
private String[] dates = {
"06-01", "06-02", "06-03", "06-04", "06-05", "06-06", "06-07",
"06-08", "06-09", "06-10", "06-11", "06-12", "06-13", "06-14",
"06-15", "06-16", "06-17", "06-18", "06-19", "06-20", "06-21",
"06-22", "06-23", "06-24", "06-25", "06-26", "06-27", "06-28",
"06-29", "06-30", "07-01", "07-02", "07-03", "07-04", "07-05",
"07-06", "07-07", "07-08", "07-09", "07-10", "07-11", "07-12",
"07-13", "07-14", "07-15", "07-16", "07-17", "07-18", "07-19",
"07-20", "07-21", "07-22", "07-23", "07-24", "07-25", "07-26",
"07-27", "07-28", "07-29", "07-30", "07-31", "08-01", "08-02",
"08-03", "08-04", "08-05", "08-06", "08-07", "08-08", "08-09",
"08-10", "08-11", "08-12", "08-13", "08-14", "08-15", "08-16",
"08-17", "08-18", "08-19", "08-20", "08-21", "08-22", "08-23",
"08-24", "08-25", "08-26", "08-27", "08-28", "08-29", "08-30",
"08-31", "09-01", "09-02", "09-03", "09-04", "09-05", "09-06",
"09-07", "09-08", "09-09", "09-10", "09-11", "09-12", "09-13",
"09-14", "09-15", "09-16", "09-17", "09-18", "09-19", "09-20",
"09-21", "09-22", "09-23", "09-24", "09-25", "09-26", "09-27",
"09-28", "09-29", "09-30", "10-01", "10-02", "10-03", "10-04",
"10-05", "10-06", "10-07", "10-08", "10-09", "10-10", "10-11",
"10-12", "10-13", "10-14", "10-15", "10-16", "10-17", "10-18",
"10-19", "10-20", "10-21", "10-22", "10-23", "10-24", "10-25",
"10-26", "10-27", "10-28", "10-29", "10-30", "10-31", "11-01",
"11-02", "11-03", "11-04", "11-05", "11-06", "11-07", "11-08",
"11-09", "11-10", "11-11", "11-12", "11-13", "11-14", "11-15",
"11-16", "11-17", "11-18", "11-19", "11-20", "11-21", "11-22",
"11-23", "11-24", "11-25", "11-26", "11-27", "11-28", "11-29",
"11-30", "12-01", "12-02", "12-03", "12-04", "12-05", "12-06",
"12-07", "12-08", "12-09", "12-10", "12-11", "12-12", "12-13",
"12-14", "12-15", "12-16", "12-17", "12-18", "12-19", "12-20",
"12-21", "12-22", "12-23", "12-24", "12-25", "12-26", "12-27",
"12-28", "12-29", "12-30", "12-31", "01-01", "01-02", "01-03",
"01-04", "01-05", "01-06", "01-07", "01-08", "01-09", "01-10",
"01-11", "01-12", "01-13", "01-14", "01-15", "01-16", "01-17",
"01-18", "01-19", "01-20", "01-21", "01-22", "01-23", "01-24",
"01-25", "01-26", "01-27", "01-28", "01-29", "01-30", "01-31",
"02-01", "02-02", "02-03", "02-04", "02-05", "02-06", "02-07",
"02-08", "02-09", "02-10", "02-11", "02-12", "02-13", "02-14",
"02-15", "02-16", "02-17", "02-18", "02-19", "02-20", "02-21",
"02-22", "02-23", "02-24", "02-25", "02-26", "02-27", "02-28",
"03-01", "03-02", "03-03", "03-04", "03-05", "03-06", "03-07",
"03-08", "03-09", "03-10", "03-11", "03-12", "03-13", "03-14",
"03-15", "03-16", "03-17", "03-18", "03-19", "03-20", "03-21",
"03-22", "03-23", "03-24", "03-25", "03-26", "03-27", "03-28",
"03-29", "03-30", "03-31", "04-01", "04-02", "04-03", "04-04",
"04-05", "04-06", "04-07", "04-08", "04-09", "04-10", "04-11",
"04-12", "04-13", "04-14", "04-15", "04-16", "04-17", "04-18",
"04-19", "04-20", "04-21", "04-22", "04-23", "04-24", "04-25",
"04-26", "04-27", "04-28", "04-29", "04-30", "05-01", "05-02",
"05-03", "05-04", "05-05", "05-06", "05-07", "05-08", "05-09",
"05-10", "05-11", "05-12", "05-13", "05-14", "05-15", "05-16",
"05-17", "05-18", "05-19", "05-20", "05-21", "05-22", "05-23",
"05-24", "05-25", "05-26", "05-27", "05-28", "05-29", "05-30",
"05-31" } ;
}