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python Programming Glossary: algorithmsWhy isn't Python very good for functional programming? http://stackoverflow.com/questions/1017621/why-isnt-python-very-good-for-functional-programming No pattern matching and no tail recursion mean your basic algorithms have to be written imperatively. Recursion is ugly and slow..
How do I sort unicode strings alphabetically in Python? http://stackoverflow.com/questions/1097908/how-do-i-sort-unicode-strings-alphabetically-in-python strcoll uses ISO 14651 . The differences between those two algorithms are briefly summarized here http unicode.org faq collation.html#13..
http://stackoverflow.com/questions/15390807/integer-square-root-in-python a perfect square. I discuss this algorithm and three other algorithms for calculating square roots at my blog . share improve this..
Working with big data in python and numpy, not enough ram, how to save partial results on disc? http://stackoverflow.com/questions/16149803/working-with-big-data-in-python-and-numpy-not-enough-ram-how-to-save-partial-r to save partial results on disc I am trying to implement algorithms for 1000 dimensional data with 200k datapoints in python. I.. on all of the points. I have implemented working algorithms that perform what I want with reasonable complexity but when.. don't go to infinity I would like to be able to put my algorithms to work and then come back an hour or five later and not have..
http://stackoverflow.com/questions/172720/speeding-up-python you won't know if you've found the 80 . Use the right algorithms and data structures. This rule should be first. Nothing matters..
Python: removing duplicates from a list of lists http://stackoverflow.com/questions/2213923/python-removing-duplicates-from-a-list-of-lists possibly heuristic checks at the start to pick different algorithms depending on input data characteristics and so forth. Careful..
http://stackoverflow.com/questions/2648151/python-frequency-detection including the YIN algorithm and some harmonic comb algorithms. However if you want something simpler I wrote some code for.. take it or leave it. It won't be as accurate as using the algorithms in aubio but it might be good enough for your needs. I basically..
Weighted random selection with and without replacement http://stackoverflow.com/questions/352670/weighted-random-selection-with-and-without-replacement without replacement. While there are well known and good algorithms for unweighted selection and some for weighted selection without.. of the resevoir algorithm I couldn't find any good algorithms for weighted selection with replacement. I also wanted to avoid..
Convert Python program to C/C++ code? http://stackoverflow.com/questions/4650243/convert-python-program-to-c-c-code a Python program to C C I need to implement a couple of algorithms and I'm not sure if the performance gap is big enough to justify..
How do I profile memory usage in Python? [duplicate] http://stackoverflow.com/questions/552744/how-do-i-profile-memory-usage-in-python 8 answers I've recently become interested in algorithms and have begun exploring them by writing a naive implementation..
FSharp runs my algorithm slower than Python! http://stackoverflow.com/questions/5850243/fsharp-runs-my-algorithm-slower-than-python speed I hope F# people from MS are reading this . Other algorithms depend on dictionaries hashes and can't be easily switched to.. doesn't require the algorithm to switch to arrays some algorithms simply won't be amenable to that is to change this let optimalResults..
http://stackoverflow.com/questions/606516/python-graph-library horribly complex but I'm thinking some sort of graph graph algorithms library would help me out. I've googled around but I don't find..
What is the most efficient way of finding all the factors of a number in Python? http://stackoverflow.com/questions/6800193/what-is-the-most-efficient-way-of-finding-all-the-factors-of-a-number-in-python all the factors of a number in Python 2.7 I can create algorithms to do this job but i think it is poorly coded and takes too..
Python - time.clock() vs. time.time() - accuracy? http://stackoverflow.com/questions/85451/python-time-clock-vs-time-time-accuracy is the function to use for benchmarking Python or timing algorithms. Additionally there is the timeit module for benchmarking code..
Python: simple list merging based on intersections http://stackoverflow.com/questions/9110837/python-simple-list-merging-based-on-intersections machine for different parameters. They show that all the algorithms have their strength and weaknesses depending on the kind of..
How to update image in tkinter label? http://stackoverflow.com/questions/14291434/how-to-update-image-in-tkinter-label parent self.initUI def initUI self self.parent.title DIP Algorithms Simple Photo Editor self.pack fill BOTH expand 1 menubar Menu.. parent self.initUI def initUI self self.parent.title DIP Algorithms Simple Photo Editor self.pack fill tk.BOTH expand 1 menubar..
http://stackoverflow.com/questions/1733073/grokking-timsort
What is memoization and how can I use it in Python? http://stackoverflow.com/questions/1988804/what-is-memoization-and-how-can-i-use-it-in-python details see page 365 of Cormen et al. Introduction To Algorithms 3e . A simple example for computing factorials using memoization..
http://stackoverflow.com/questions/2526815/moon-lunar-phase-algorithm drawn from the following sources Meeus Jean. Astronomical Algorithms. Richmond Willmann Bell 1991. ISBN 0 943396 35 2. A must have.. have if you only buy one book make sure it's this one. Algorithms are presented mathematically not as computer programs but source..
Finding blank regions in image http://stackoverflow.com/questions/3310681/finding-blank-regions-in-image with a graph type search We did plenty of DFS and BFS in Algorithms last semester Of course I guess I could do that instead in conjunction..
Checking if two strings are permutations of each other in Python http://stackoverflow.com/questions/396421/checking-if-two-strings-are-permutations-of-each-other-in-python to split things like this based on input size or type. Algorithms have different strengths or weaknesses and it would be foolish..
Python - anyone have a memoizing decorator that can handle unhashable arguments? http://stackoverflow.com/questions/4669391/python-anyone-have-a-memoizing-decorator-that-can-handle-unhashable-arguments following memoizing decorator from the great book Python Algorithms Mastering Basic Algorithms in the Python Language ... love it.. from the great book Python Algorithms Mastering Basic Algorithms in the Python Language ... love it btw . def memo func cache..
Basic indexing recurrences of a substring within a string (python) http://stackoverflow.com/questions/6987702/basic-indexing-recurrences-of-a-substring-within-a-string-python classic algorithm book http www.amazon.com Introduction Algorithms Thomas H Cormen dp 0262033844 . It has a whole chapter about..
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