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100 numpy exercises This is a collection of exercises that have been collected in the numpy mailing list, on stack overflow and in the numpy documentation. The goal of this collection is to offer a quick reference for both old and new users but also to provide a set of exercises for those who teach. If you find an error or think you've a better way to solve some of them, feel free to open an issue
mzmttks's blog for my memorandum ã®ç¥ã§ mzrandum. Topics are: python, book review, and my hobbies. 夿¬¡å ã® numpy.array ã® argmax ãæ±ãããæã¯ä»¥ä¸ã®ããã«ããã import numpy x = [numpy.array object] numpy.unravel_index(x.argmax(), x.shape) ãªãï¼ x.argmax() ã¯ã1次å è¡åã«å¤æããæã®ä½ç½®ãè¿ãã numpy.unravel_index ã¯ä¸æ¬¡å ã«å¤æããæã®ä½ç½®ã¨è¡åã®æ¬¡å ãããã®è¡åã§ããã¨ã©ã®ä½ç½®ããè¨ç®ããã ããããçµã¿åãããã¨ããã¨ã®è¡åã®ä½è¡ä½åç®ã«æå¤§å¤ãããã®ããåããã
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ã¯ããã« æ¬è¨äºã¯Python2.7, numpy 1.11, scipy 0.17, scikit-learn 0.18, matplotlib 1.5, seaborn 0.7, pandas 0.17ã使ç¨ãã¦ãã¾ãï¼ jupyter notebookä¸ã§åä½ç¢ºèªæ¸ã¿ã§ãï¼(%matplotlib inlineã¯é©å½ã«ä¿®æ£ãã¦ãã ãã) Sklearnã®Manifold learningã®è¨äºãåèã«ãã¦ãã¾ãï¼ å¤æ§ä½å¦ç¿ã¨è¨ãããææ³ã«ã¤ãã¦ï¼sklearnã®digitsãµã³ãã«ãç¨ãã¦èª¬æãã¾ãï¼ ç¹ã«t-SNEã¯Kaggleãªã©ã§ããã¾ã«ä½¿ç¨ããã¦ããï¼å¤æ¬¡å ãã¼ã¿ã®å¯è¦åã«é©ããææ³ã§ãï¼ ã¾ãå¯è¦åã ãã§ãªãï¼å ã®ãã¼ã¿ã¨å§ç¸®ããããã¼ã¿ãçµåãããã¨ã§ï¼åç´ãªåé¡åé¡ã®ç²¾åº¦ãåä¸ãããã¨ãã§ãã¾ãï¼ ç®æ¬¡ ãã¼ã¿ã®çæ ç·å½¢è¦ç´ ã«æ³¨ç®ããæ¬¡å 忏 Random Proj
Pythonã§ä¸çªæåã§æ®åãã¦ããã©ã¤ãã©ãªã¨è¨ã£ã¦ãéè¨ã§ã¯ãªããNumpyãã®è¦æ¸ãã§ããããªã夿©è½ãªæ°å¤è¨ç®ã©ã¤ãã©ãªã§ãå é¨ã¯Cè¨èªã§è¨è¿°ããã¦ããããè¶ é«éã«åä½ãã¾ãã ãã¯ãã« ãã¯ãã«ã®é·ãï¼æ£è¦å import numpy a = numpy.array([[2,2]]) #ãã¯ãã«ã®é·ã length = numpy.linalg.norm(a) #length=>2.8284271247461903 #ãã¯ãã«ã®æ£è¦å a / numpy.linalg.norm(a) #=>array([[ 0.70710678, 0.70710678]]) å ç©ï¼å¤ç© import numpy v1 = numpy.array((1,0,0)) v2 = numpy.array((0,1,0)) #å ç© numpy.dot(v1,v2) #=> 0 #å¤ç© numpy.cros
INTRODUCTION: I have a list of more than 30,000 integer values ranging from 0 to 47, inclusive, e.g.[0,0,0,0,..,1,1,1,1,...,2,2,2,2,...,47,47,47,...] sampled from some continuous distribution. The values in the list are not necessarily in order, but order doesn't matter for this problem. PROBLEM: Based on my distribution I would like to calculate p-value (the probability of seeing greater values)
10/15 ã« IBM ããã®æ¸è°·ãªãã£ã¹ã«ã¦éå¬ããã 第2å Tokyo.SciPy ã«ã®ãã®ãåå ãã¦ãã¾ããã主å¬ã® @sla ããã¯ãããåå è ã»çºè¡¨è åä½ãã¤ãããã¾ã§ããï¼ãããã¨ããããã¾ããã ãã£ããè¡ããªããªããçºè¡¨ããããããã¨ãããã¨ã§ãæ°å¼ã numpy ã«è½ã¨ãããã³ã ãæ©æ¢°å¦ç¿ã顿ã«ãããªãã¦ã¿ã¤ãã«ã§ãæ°å¼(ãããã¯æ°å¼å ¥ãã®ã¢ã«ã´ãªãºã )ãå®è£ ããã¨ãã«ãã©ãããç¹ã«æ³¨ç®ããã°æããã³ã¼ããæ¸ããããã«ã¤ãã¦ã¡ãã¡ãèªã£ã¦ã¿ãã ãã¡ãããã®è³æã æ°å¼ãnumpyã«è½ã¨ãããã³ã View more presentations from Shuyo Nakatani ä¾ãã°ãæ©æ¢°å¦ç¿ã®(å¤ã¯ã©ã¹)ãã¸ã¹ãã£ãã¯å帰ã¨ããæè¡ã§ã¯ã次ã®ãããªæ°å¼ãç»å ´ããã (PRML (4.109) å¼) ãããä¸ç®è¦ã¦ããããã¨ã³ã¼ããæ¸ãããªãè¦å´ã¯ãªãããæ £
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Overview This software implements the Dirichlet Forest (DF) Prior [1] within the LDA model for discrete count data. When combined with LDA [2], the Dirichlet Forest Prior allows the user to encode domain knowledge (must-links and cannot-links between words) into the prior on topic-word multinomials. The inference method is Collapsed Gibbs sampling [3]. This code can also be used to do "standard" L
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