"This is a demonstration of count, average, minimum and maximum algorithms in Python"

print __doc__

# Some common algorithms applied to a file of data

total_so_far = 0
how_many = 0

for lyne in open("info.txt"):
        # Echo the line (as a demo)

        print "Read:",lyne
        value = int(lyne) # get whole number from line

        total_so_far = total_so_far + value # Summing algorithm
        how_many = how_many + 1 # counting algorithm

        # initialise minima and maxima if this if the first same from the data
        # otherwise compare to previous maximum / minimum
        if how_many <= 1:
                maximum_people = value
                minimum_people = value
        else:
                if maximum_people < value: maximum_people = value # maximum algorithm
                if minimum_people > value: minimum_people = value # minimum algorithm

# so_far as the end turns out to be the final number
print "total population around the stations is",total_so_far
print "total stations",how_many
print "highest population around station",maximum_people
print "lowest population around station",minimum_people
average = float(total_so_far) / float(how_many) # average algorithm
print "Average was", average

""" Sample output:

munchkin:opy grahamellis$ python algorithms
This is a demonstration of count, average, minimum and maximum algorithms in Python
Read: 250000

Read: 40000

Read: 25000

Read: 32000

Read: 12000

Read: 2000

Read: 22000

Read: 45000

Read: 1000

total population around the stations is 429000
total stations 9
highest population around station 250000
lowest population around station 1000
Average was 47666.6666667
munchkin:opy grahamellis$

"""