On 2013-01-10 17:50, pmec wrote:
Hi there guys i've got a script that's suppose to find the average of two times
as strings. The times are in minutes:seconds:milliseconds
i'm doing ok in printing the right minutes and seconds my problem is with the
milliseconds.
Example if i have 00:02:20 and 00:04:40 the average will be 00:03:30 or
00:02:00 and 00:03:00 will be 00:02:30
If the final 2 digits are milliseconds, then the second average would
be 00:02:500; if they're centiseconds (hundredths of a second), then
the second average would be 00:02:50.
If the average you give is correct ('00:02:30'), then that suggests
that they are in fact hours:minutes:seconds.
Can anyone help me out with this please. Here is the code that i have so far:
def lap_average(lap1, lap2):
t1 = lap1.replace(":",'')
t2 = lap2.replace(":",'')
mins1, secs1, hundreths1 = t1[:2], t1[2:4], t1[4:]
mins2, secs2, hundreths2 = t2[:2], t2[2:4], t2[4:]
total_seconds = int(secs1) + int(secs2) + int(mins1) * 60 + int(mins2) * 60
millisec = (total_seconds * 1000)
millisec = millisec / 2
micro_x = millisec
minutes = micro_x / (60*1000)
micro_x = micro_x - minutes * (60*1000)
seconds = micro_x / 1000
micro_x = micro_x - seconds
print '%02d:%02d:%s' % (minutes, seconds, micro_x)
lap_average('03:40:00', '05:20:00')
lap_average('03:00:02', '02:00:00')
lap_average('02:25:50', '06:50:75')
lap_average('00:02:00', '00:03:00')
lap_average('00:02:20', '00:04:40')
lap_average('02:40:40', '03:30:30')
lap_average('02:60:30', '60:40:40')
Thanks in Advance
I don't see the point of these 2 lines of removing the ':'; slice
'lap1' and 'lap2' instead:
mins1, secs1, hundreths1 = lap1[:2], lap1[3:5], lap1[6:]
mins2, secs2, hundreths2 = lap2[:2], lap2[3:5], lap2[6:]
Better yet, split on ':':
mins1, secs1, hundreths1 = lap1.split(':')
mins2, secs2, hundreths2 = lap2.split(':')
Incidentally, you're talking about milliseconds, but the names say
'hundreths'.
A useful function is 'divmod', which, as its name suggests, performs
both (integer) division and modulo in one step:
seconds, millisec = divmod(millisec, 1000)
minutes, seconds = divmod(seconds, 60)
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