1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
package fun;
public class ProbShared {
public static void main(String args[]){
int k=Integer.parseInt(args[0]);
int len1=Integer.parseInt(args[1]);
int len2=Integer.parseInt(args[2]);
System.out.println("Cardinality 1: "+cardinality(k, len1));
System.out.println("Cardinality 2: "+cardinality(k, len2));
System.out.println("Probability: "+probIntersect(k, len1, len2));
}
static int cardinality(int k, int seqLength){
double space=Math.pow(4, k);
int kmers=seqLength-k+1;
double unique=0;
for(int i=0; i<kmers; i++){
double prob=(space-unique)/space;
unique+=prob;
}
return (int)Math.round(unique);
}
static double probIntersect(int k, int len1, int len2){
int card1=cardinality(k, len1);
int card2=cardinality(k, len2);
double space=Math.pow(4, k);
double cumulativeProbUnshared=1;
for(int i=0; i<card1; i++){
double probShared=card2/space;
double probUnshared=1-probShared;
space-=probUnshared;
cumulativeProbUnshared*=probUnshared;
}
return 1-cumulativeProbUnshared;
}
}
|
