python Programming Glossary: random.sample

http://stackoverflow.com/questions/12128948/python-random-lines-from-subfolders

import random with open 'C Tasks file.txt' as f lines random.sample f.readlines 10 print lines python python 3.x random sample.. import bisect tasks list range total_lines task_indices random.sample tasks 10 for index in task_indices # find the closest file index.. when printing the task selected. Next time you run the random.sample choices the tasks previously picked will no longer be available..

Python random.sample with a generator

http://stackoverflow.com/questions/12581437/python-random-sample-with-a-generator

random.sample with a generator Do you know if there is a way to get python's.. a generator Do you know if there is a way to get python's random.sample to work with a generator object. I am trying to get a random.. sample from a very large text corpus. The problem is that random.sample raises the following error. TypeError object of type 'generator'..

Weighted random sample in python

http://stackoverflow.com/questions/13047806/weighted-random-sample-in-python

a random sample of k of those without replacement just as random.sample behaves compared to random.choice . Just as weighted_choice.. cnt weighted_sample could be written as lambda weights k random.sample val for val cnt in enumerate weights for i in range cnt k but.. From your code .. weight_sample_indexes lambda weights k random.sample val for val cnt in enumerate weights for i in range cnt k ....

Good graph traversal algorithm

http://stackoverflow.com/questions/1320688/good-graph-traversal-algorithm

s n user users crawl id 5 if len users 2 for user in random.sample users 2 if user_pool.num_jobs 100 user_pool.add_job do_user..

calling func. change the input [closed]

http://stackoverflow.com/questions/13397445/calling-func-change-the-input

random print test_rec_cumsum 1 2 3 print test_rec_cumsum random.sample range 100 30 print test_rec_cumsum python share improve this..

Is it possible to specify your own distance function using Scikits.Learn K-Means Clustering?

http://stackoverflow.com/questions/5529625/is-it-possible-to-specify-your-own-distance-function-using-scikits-learn-k-means

N x dim may be sparse centres k x dim initial centres e.g. random.sample X k delta relative error iterate until the average distance.. x.todense y.todense kwargs 0 return d def randomsample X n random.sample of the rows of X X may be sparse best csr sampleix random.sample.. of the rows of X X may be sparse best csr sampleix random.sample xrange X.shape 0 int n return X sampleix def nearestcentres..

how do i create a LIST of unique random numbers?

http://stackoverflow.com/questions/9755538/how-do-i-create-a-list-of-unique-random-numbers

i in range 50 # get 40 random queries from the 50 lines random.sample f1.readlines 40 python random sample share improve this question.. selected from the range 0 to 99 without duplicates. random.sample range 100 10 With reference to your specific code example you.. For example all_lines f1.readlines for i in range 50 lines random.sample all_lines 40 This way you only need to actually read from the..