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calculate apparent infection rate

Python, 83 lines
 ``` 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 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83``` ```# Created by Donyo Ganchev, Agricultural University, town of Plovdiv, Bulgaria # donyo@abv.bg import math import datetime choice=None def air(): f_y, f_m, f_d=input('Enter first date in format "year, month, day": ') s_y, s_m, s_d=input('Enter second date in format "year, month, day": ') f_pdi=float(input('Enter pdi observed at first date: ')) s_pdi=float(input('Enter pdi observed at second date: ')) f_date=datetime.date(f_y, f_m, f_d) s_date=datetime.date(s_y, s_m, s_d) sdif=str(s_date-f_date) int_dif=int(sdif[0:2]) r=(1/float(int_dif))*math.log((s_pdi*(1-f_pdi))/(f_pdi*(1-s_pdi))) print \ """ """ print "%2.10f" %r while choice!="0": print \ """ Apparent Infection Rate Calculation Created by Donyo Ganchev - Agricultural University, Plovdiv, Bulgaria 1 - Begin calculation 0 - Exit """ choice= raw_input("Choice: ") if choice == "0": exit() elif choice=="1": air() ```
 Created by donyo Ganchev on Tue, 6 Apr 2010 (MIT)

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