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python Programming Glossary: computePython: tf-idf-cosine: to find document similarity http://stackoverflow.com/questions/12118720/python-tf-idf-cosine-to-find-document-similarity in the dataset and all of the others you just need to compute the dot products of the first vector with all of the others..
pylab.ion() in python 2, matplotlib 1.1.1 and updating of the plot while the program runs http://stackoverflow.com/questions/12822762/pylab-ion-in-python-2-matplotlib-1-1-1-and-updating-of-the-plot-while-the-pro program runs what I am trying to do is having a script compute something prepare a plot and show the already obtained results.. and while still computing showing what has already been computed in previous iterations and not bothering the user to continually..
http://stackoverflow.com/questions/145607/text-difference-algorithm files and highlight their difference and even better can compute their difference in a meaningful way like two similar files..
multiprocessing GUI schemas to combat the “Not Responding” blocking http://stackoverflow.com/questions/15698251/multiprocessing-gui-schemas-to-combat-the-not-responding-blocking import # equivalent from PyQt4.QtGui import def compute num print worker started at d num random_number random.randint.. self num_row self.list.count self.pool.apply_async func compute args num_row callback self.receiveResult error_callback self.receiveException.. item.text ' Retry...' self.pool.apply_async func compute args num_row callback self.receiveResult error_callback self.receiveException..
Why program functionally in Python? http://stackoverflow.com/questions/1892324/why-program-functionally-in-python reduce one comment claims that reduce is the best way to compute the product of a list. Oh really Let's see... python mtimeit..
Python: removing duplicates from a list of lists http://stackoverflow.com/questions/2213923/python-removing-duplicates-from-a-list-of-lists i return newk # sanity check that all functions compute the same result and don't alter k if __name__ '__main__' savek..
Solving embarassingly parallel problems using Python multiprocessing http://stackoverflow.com/questions/2359253/solving-embarassingly-parallel-problems-using-python-multiprocessing problem Given a CSV file with rows of integers as input compute their sums. Separate the problem into three parts which can..
Simple implementation of N-Gram, tf-idf and Cosine similarity in Python http://stackoverflow.com/questions/2380394/simple-implementation-of-n-gram-tf-idf-and-cosine-similarity-in-python i i n for i in range count for tf idf you will have to compute distribution first I am using Lucene to do that but you may.. t len tmap rec t sim.tf f sim.idf df max_doc #compute TF.IDF # and normalize the values using cosine normalization..
Python “Every Other Element” Idiom http://stackoverflow.com/questions/2631189/python-every-other-element-idiom a list. For example given the list 1 2 3 4 5 6 I wanted to compute 1 2 3 4 5 6 . I came up with a quick solution at the time that..
Adding a scrollbar to a grid of widgets in Tkinter http://stackoverflow.com/questions/3085696/adding-a-scrollbar-to-a-grid-of-widgets-in-tkinter coordinates of each text item is going to be very easy to compute especially if each row is the same height which it probably..
How can I build a recursive function in python? [closed] http://stackoverflow.com/questions/479343/how-can-i-build-a-recursive-function-in-python . Here is a simple example of a recursive function to compute the factorial function def factorial n if n 0 return 1 else..
Using strides for an efficient moving average filter http://stackoverflow.com/questions/4936620/using-strides-for-an-efficient-moving-average-filter to this post and was wondering how I could use them to compute a moving average filter more efficiently than what I proposed.. it by the necessary amount and sums the kernel values to compute the average. I am aware that the edges are not handled correctly..
How to write the Fibonacci Sequence in Python http://stackoverflow.com/questions/494594/how-to-write-the-fibonacci-sequence-in-python a bit of a jumble. I am asked to write a program that will compute and display Fibonacci's Sequence by a user inputted start number.. This one is pretty easy to implement and very very fast to compute in Python def F n return 1 sqrt 5 n 1 sqrt 5 n 2 n sqrt 5 An..
How to apply numpy.linalg.norm to each row of a matrix? http://stackoverflow.com/questions/7741878/how-to-apply-numpy-linalg-norm-to-each-row-of-a-matrix this question If you are computing an L2 norm you could compute it directly using the axis 1 argument to sum along rows np.sum.. along rows np.sum np.abs x 2 axis 1 1. 2 Lp norms can be computed similarly of course. It is considerably faster than np.apply_along_axis.. best of 3 18.3 us per loop Other ord forms of norm can be computed directly too with similar speedups In 55 timeit np.apply_along_axis..
subclasses of pandas' object work differently from subclass of other object? http://stackoverflow.com/questions/11979194/subclasses-of-pandas-object-work-differently-from-subclass-of-other-object supportMethod2 self print 'I am support method 2' class Compute object supp None def test self self.supp class Config object.. cls cls.supp Support @classmethod def setConfig1 cls Compute.supp cls.supp.supportMethod1 @classmethod def setConfig2 cls.. cls.supp.supportMethod1 @classmethod def setConfig2 cls Compute.supp cls.supp.supportMethod2 Config.initializeConfig Config.setConfig1..
http://stackoverflow.com/questions/13542855/python-help-to-implement-an-algorithm-to-find-the-minimum-area-rectangle-for-gi and in Java or following the this example procedure Compute the convex hull of the cloud. For each edge of the convex hull..
How to determine a region of interest and then crop an image using OpenCV http://stackoverflow.com/questions/15693900/how-to-determine-a-region-of-interest-and-then-crop-an-image-using-opencv Point right bottom box_points.push_back cv Point right top Compute minimal bounding box for the ROI Note for some unknown reason..
Creating a movie in Jython/Python http://stackoverflow.com/questions/17288272/creating-a-movie-in-jython-python an empty movie to receive the frames movie makeMovie # Compute save the frames w 40 h 25 nb_frames 60 # Will give 60 frames.. an empty movie to receive the frames movie makeMovie # Compute save the frames w 40 h 25 nb_frames 120 # Will give 120 frames..
Speeding up a closest point on a hyperbolic paraboloid algorithm http://stackoverflow.com/questions/18858448/speeding-up-a-closest-point-on-a-hyperbolic-paraboloid-algorithm you can go two different ways that give the same result Compute the length of that vector p s 2 take its derivatives w.r.t... its derivatives w.r.t. u and v and equate them to zero. Compute two vectors tangent to the hypar at s which can be found as..
How are exceptions implemented under the hood? http://stackoverflow.com/questions/1995734/how-are-exceptions-implemented-under-the-hood
http://stackoverflow.com/questions/2831527/phase-correlation in image y use phase correlation in cartesian coordinates Compute log polar transforms of both x and y this is a whole other problem..
plotting results of hierarchical clustering ontop of a matrix of data in python http://stackoverflow.com/questions/2982929/plotting-results-of-hierarchical-clustering-ontop-of-a-matrix-of-data-in-python 40 for i in range 40 for j in range 40 D i j abs x i x j # Compute and plot first dendrogram. fig pylab.figure figsize 8 8 ax1.. Y orientation 'right' ax1.set_xticks ax1.set_yticks # Compute and plot second dendrogram. ax2 fig.add_axes 0.3 0.71 0.6 0.2..
Adding a scrollbar to a grid of widgets in Tkinter http://stackoverflow.com/questions/3085696/adding-a-scrollbar-to-a-grid-of-widgets-in-tkinter canvas embed the frame that contains your label widgets. Compute the width height of the frame and feed that into the canvas..
Line up columns of numbers (print output in table format) http://stackoverflow.com/questions/3685195/line-up-columns-of-numbers-print-output-in-table-format ' n' # Reorganize data by columns cols zip rows # Compute column widths by taking maximum length of values per column..
Non biased return a list of n random positive numbers (>=0) so that their sum == total_sum http://stackoverflow.com/questions/3959021/non-biased-return-a-list-of-n-random-positive-numbers-0-so-that-their-sum 2 3 and b sqrt 3 . Calculate the vector U' 1 sqrt 3 u v Compute U U' W. If any of U's components are outside the range 0 b reject.. and b k N . Calculate the vector U' 1 N u 1 u 2 ... u N 1 Compute U U' W. there are shortcuts to actually having to construct..
How to tell if one regular expression matches a subset of another regular expression? http://stackoverflow.com/questions/6363397/how-to-tell-if-one-regular-expression-matches-a-subset-of-another-regular-expres a subset of what regexp B matches an algorithm could Compute the minimal Deterministic Finite Automaton of B and also of..
Good Python modules for fuzzy string comparison? http://stackoverflow.com/questions/682367/good-python-modules-for-fuzzy-string-comparison import Levenshtein help Levenshtein.ratio ratio ... Compute similarity of two strings. ratio string1 string2 The similarity.. 'Brian' 'Jesus' 0.0 help Levenshtein.distance distance ... Compute absolute Levenshtein distance of two strings. distance string1..
multiprocessing.Pool seems to work in Windows but not in ubuntu? http://stackoverflow.com/questions/6914240/multiprocessing-pool-seems-to-work-in-windows-but-not-in-ubuntu n for x n in enumerate nTasks N # nTasks different tasks # Compute parallel async asynchronically i.e. not necessary in order...
Robust Hand Detection via Computer Vision http://stackoverflow.com/questions/8593091/robust-hand-detection-via-computer-vision Hand Detection via Computer Vision I am currently working on a system for robust hand.. function This histogram now acts as a model for skin. Compute the backprojection i.e. use the histogram to compute the probability..
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