On 16/06/2013 16:55, Chris “Kwpolska” Warrick wrote:
On Sat, Jun 15, 2013 at 7:22 AM, Patrick Williams <pdw0...@gmail.com> wrote:
Hi so I am making a bit of code to extract a bit of numbers data from a file
and then find the average of that data, however while I can get the code to
extract each specific piece of data I need, I can't seem to get the numbers
to add separately so I can get a proper average. My sum1 variable seems to
only take the last bit of data entered. I was just wondering if anyone knows
what I'm doing wrong, the course I'm following hadn't started using regex
(or even proper lists) at this point, so there must be a way to do it
without. here's the code. the average of the data should be 0.6789 or
something, but I get 0.0334343 or something.
count=0
lst=list()
`lst = []` is the preferred syntax.
fname='mbox-short.txt'
fhand=open(fname)
for line in fhand:
if line.startswith('X-DSPAM-Confidence:'):
count=count+1
colpos=line.find(':')
zpos=line.find('0',colpos)
num=float(line[zpos:50])
sum1=0+num
avg=float(sum1)/int(count)
I'll assume unless someone tells me differently that sum1 does not need
reinitialising every time, and that avg needs to be calculated when the
loop has finished.
print 'Count-', count,'--', 'Average-', avg
Any help at all is appreciated, and thanks in advance.
I don’t know what file you used, but the message you sent got this
header from Gmail, and the format doesn’t seem to be much different:
X-Spam-Evidence: '*H*': 0.79; '*S*': 0.00; 'separately': 0.09;
'wrong,': 0.09; 'subject:question': 0.10; 'code.': 0.18;
'variable': 0.18; 'bit': 0.19; 'advance.': 0.19; 'seems': 0.21;
'8bit%:5': 0.22; 'print': 0.22; 'skip:l 30': 0.24; '\xa0so': 0.24;
[snip 11 more lines]
(replaced tabstops with spaces)
Can you guess what’s wrong in your code?
You are reading only the first line. >
What does "for line in fhand:" do then?
--
"Steve is going for the pink ball - and for those of you who are
watching in black and white, the pink is next to the green." Snooker
commentator 'Whispering' Ted Lowe.
Mark Lawrence
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