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python Programming Glossary: totalsChanging output of `voting_approval` http://stackoverflow.com/questions/13638424/changing-output-of-voting-approval beginning sums the Yes 's and creates a new list with the totals which is then used to pull out the required info. Happy to tweak..
Create a Pandas dataframe with counts of items spanning a date range http://stackoverflow.com/questions/18775052/create-a-pandas-dataframe-with-counts-of-items-spanning-a-date-range 0 0 2001 05 0 0 2001 06 1 0 The cumsum track the running totals of starts and ends up to that point In 24 current.fillna 0 .cumsum..
Generating weighted random numbers http://stackoverflow.com/questions/19871608/generating-weighted-random-numbers import itertools import random probabilities 0.3 0.2 0.5 totals list itertools.accumulate probabilities def sample n random.uniform.. probabilities def sample n random.uniform 0 totals 1 for i total in enumerate totals if n total return i If you.. n random.uniform 0 totals 1 for i total in enumerate totals if n total return i If you don't have Python 3.2 you don't have..
http://stackoverflow.com/questions/4285185/python-memory-limit incrementally. To accomplish this a list of running totals for each of the fields is kept. When that is finished the average.. 'r' as input_file print processing file file_name count 0 totals None for line in input_file fields line.split ' t' try fields.remove.. n' # remove empty field why except ValueError pass if not totals # first line totals map float fields else for i in xrange..
Efficient way of parsing fixed width files in Python http://stackoverflow.com/questions/4914008/efficient-way-of-parsing-fixed-width-files-in-python except ImportError def accumulate iterable 'Return running totals simplified version .' total next iterable yield total for value..
how to write dict data in table format http://stackoverflow.com/questions/5243623/how-to-write-dict-data-in-table-format user on that date. Then there are columns that produce the totals for each status across every date and so on. The output you've..
Algorithm to Divide a list of numbers into 2 equal sum lists http://stackoverflow.com/questions/890171/algorithm-to-divide-a-list-of-numbers-into-2-equal-sum-lists limited to a depth of players 2. The player sum limit is totalscores 2. With a player pool of 100 it took approximately 10 seconds.. seconds to solve. def team t iterations range 2 len t 2 1 totalscore sum t halftotalscore totalscore 2.0 oldmoves for p in t.. team t iterations range 2 len t 2 1 totalscore sum t halftotalscore totalscore 2.0 oldmoves for p in t people_left t people_left.remove..
Distributing integers using weights? How to calculate? http://stackoverflow.com/questions/9088403/distributing-integers-using-weights-how-to-calculate 3 with weights of 1 2 3 results in 1 1 2 which totals 4. What is the simplest way to fix this distribution algorithm..
Select random item with weight http://stackoverflow.com/questions/9259989/select-random-item-with-weight suggested is import random def weighted_choice weights totals running_total 0 for w in weights running_total w totals.append.. totals running_total 0 for w in weights running_total w totals.append running_total rnd random.random running_total for i total.. rnd random.random running_total for i total in enumerate totals if rnd total return i You can find more details and possible..
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