{"id":4774,"date":"2022-03-01T20:51:24","date_gmt":"2022-03-01T11:51:24","guid":{"rendered":"https:\/\/broaden-your-horizons.com\/ai-ss\/?p=4774"},"modified":"2022-04-05T13:05:36","modified_gmt":"2022-04-05T04:05:36","slug":"random","status":"publish","type":"post","link":"https:\/\/broaden-your-horizons.com\/ai-ss\/numpy\/random\/","title":{"rendered":"NumPy:\u3010np.random\u3011\u306e\u3042\u308c\u3053\u308c\uff08\u5b9f\u884c\u7d50\u679c\u3067\u8aac\u660e\uff09"},"content":{"rendered":"<p><!--\u518d\u5229\u7528\u30d6\u30ed\u30c3\u30af\uff08numpy-header\uff09--><br \/>\n\n<p class=\"backlink\"><a href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/ai-top\/numpy\/\">page:[NumPy\u307e\u3068\u3081]<\/a><\/p>\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b5\u30de\u30ea<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>.bytes<ul><li>\u30d0\u30a4\u30c8\u578b\u30e9\u30f3\u30c0\u30e0\u5024<\/li><\/ul><\/li><li>.random<ul><li>.random_sample\u3068\u540c\u3058<\/li><\/ul><\/li><li>.permutation<ul><li>\u91cd\u8907\u306a\u3057\u30e9\u30f3\u30c0\u30e0\u5024<\/li><\/ul><\/li><li>.shuffle<ul><li>ndarray\u306e\u4e26\u3073\u9806\u30b7\u30e3\u30c3\u30d5\u30eb<\/li><\/ul><\/li><li>.choice<ul><li>ndarray\u304b\u3089\u62bd\u51fa<\/li><li>\u91cd\u8907OK\u3001\u91cd\u8907\u306a\u3057<\/li><li>\u51fa\u73fe\u78ba\u7387\u6307\u5b9a\u3001\u51fa\u73fe\u7387<\/li><\/ul><\/li><li>.rand<ul><li>0\uff5e1\u30e9\u30f3\u30c0\u30e0\u5024<\/li><\/ul><\/li><li>.randn<ul><li>\u6a19\u6e96\u6b63\u898f\u5206\u5e03\u306b\u5f93\u3063\u305f\u30e9\u30f3\u30c0\u30e0\u5024<\/li><\/ul><\/li><li>.normal<ul><li>\u6b63\u898f\u5206\u5e03\u306b\u5f93\u3063\u305f\u30e9\u30f3\u30c0\u30e0\u5024<\/li><\/ul><\/li><li>.random_sample<ul><li>0\uff5e1\u30e9\u30f3\u30c0\u30e0\u5024<\/li><\/ul><\/li><li>.randint<ul><li>\u7bc4\u56f2\u6307\u5b9a\u30fb\u6574\u6570\u5024\u30e9\u30f3\u30c0\u30e0\u5024<\/li><\/ul><\/li><li>.seed<ul><li>\u4e71\u6570\u56fa\u5b9a<\/li><\/ul><\/li><\/ul>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u306f\u3058\u3081\u306b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u524d\u63d0<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>np.frombuffer<ul><li>\n<a class=\"movelink\" href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/numpy\/something-of-useful\/#toc_id_3_2\">NumPy:\u3010\u7d44\u307f\u8fbc\u307f\u95a2\u6570\u3011\u4fbf\u5229\u305d\u3046\u306a\u3082\u306e<\/a>\n<\/li><\/ul><\/li><li>np.arange<ul><li>\n<a class=\"movelink\" href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/numpy\/arange\/#toc_id_2_1\">NumPy:\u3010\u5e8f\u6570,\u9806\u5217,\u500d\u6570,\u7b49\u5206\u5272\u3011\u306e\u5b9f\u884c\u7d50\u679c<\/a>\n<\/li><\/ul><\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\">\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/h3>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\nnp.random?<\/code><\/pre>\n\n\n\n<div class=\"prev_box\" style=\"margin-top:30px\">\n    <input type=\"checkbox\" id=\"label1\">\n    <label for=\"label1\" style=\"user-select:none\">\u5168\u6587\u8868\u793a<\/label>\n    <div class=\"all_show\" for=\"label1\" style=\"margin-top:-15px\">\n    <!--\u975e\u8868\u793a\u3053\u3053\u304b\u3089-->\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">Type:        module\nString form: <module 'numpy.random'=\"\" from=\"\" '=\"\" home=\"\" futa=\"\" miniconda3=\"\" lib=\"\" python3.9=\"\" site-packages=\"\" numpy=\"\" random=\"\" __init__.py'=\"\">\nFile:        ~\/miniconda3\/lib\/python3.9\/site-packages\/numpy\/random\/__init__.py\nDocstring:\n========================\nRandom Number Generation\n========================\n\nUse ``default_rng()`` to create a `Generator` and call its methods.\n\n=============== =========================================================\nGenerator\n--------------- ---------------------------------------------------------\nGenerator       Class implementing all of the random number distributions\ndefault_rng     Default constructor for ``Generator``\n=============== =========================================================\n\n============================================= ===\nBitGenerator Streams that work with Generator\n--------------------------------------------- ---\nMT19937\nPCG64\nPCG64DXSM\nPhilox\nSFC64\n============================================= ===\n\n============================================= ===\nGetting entropy to initialize a BitGenerator\n--------------------------------------------- ---\nSeedSequence\n============================================= ===\n\n\nLegacy\n------\n\nFor backwards compatibility with previous versions of numpy before 1.17, the\nvarious aliases to the global `RandomState` methods are left alone and do not\nuse the new `Generator` API.\n\n==================== =========================================================\nUtility functions\n-------------------- ---------------------------------------------------------\nrandom               Uniformly distributed floats over ``[0, 1)``\nbytes                Uniformly distributed random bytes.\npermutation          Randomly permute a sequence \/ generate a random sequence.\nshuffle              Randomly permute a sequence in place.\nchoice               Random sample from 1-D array.\n==================== =========================================================\n\n==================== =========================================================\nCompatibility\nfunctions - removed\nin the new API\n-------------------- ---------------------------------------------------------\nrand                 Uniformly distributed values.\nrandn                Normally distributed values.\nranf                 Uniformly distributed floating point numbers.\nrandom_integers      Uniformly distributed integers in a given range.\n                     (deprecated, use ``integers(..., closed=True)`` instead)\nrandom_sample        Alias for `random_sample`\nrandint              Uniformly distributed integers in a given range\nseed                 Seed the legacy random number generator.\n==================== =========================================================\n\n\n==================== =========================================================\nUnivariate\ndistributions\n-------------------- ---------------------------------------------------------\nbeta                 Beta distribution over ``[0, 1]``.\nbinomial             Binomial distribution.\nchisquare            :math:`\\chi^2` distribution.\nexponential          Exponential distribution.\nf                    F (Fisher-Snedecor) distribution.\ngamma                Gamma distribution.\ngeometric            Geometric distribution.\ngumbel               Gumbel distribution.\nhypergeometric       Hypergeometric distribution.\nlaplace              Laplace distribution.\nlogistic             Logistic distribution.\nlognormal            Log-normal distribution.\nlogseries            Logarithmic series distribution.\nnegative_binomial    Negative binomial distribution.\nnoncentral_chisquare Non-central chi-square distribution.\nnoncentral_f         Non-central F distribution.\nnormal               Normal \/ Gaussian distribution.\npareto               Pareto distribution.\npoisson              Poisson distribution.\npower                Power distribution.\nrayleigh             Rayleigh distribution.\ntriangular           Triangular distribution.\nuniform              Uniform distribution.\nvonmises             Von Mises circular distribution.\nwald                 Wald (inverse Gaussian) distribution.\nweibull              Weibull distribution.\nzipf                 Zipf's distribution over ranked data.\n==================== =========================================================\n\n==================== ==========================================================\nMultivariate\ndistributions\n-------------------- ----------------------------------------------------------\ndirichlet            Multivariate generalization of Beta distribution.\nmultinomial          Multivariate generalization of the binomial distribution.\nmultivariate_normal  Multivariate generalization of the normal distribution.\n==================== ==========================================================\n\n==================== =========================================================\nStandard\ndistributions\n-------------------- ---------------------------------------------------------\nstandard_cauchy      Standard Cauchy-Lorentz distribution.\nstandard_exponential Standard exponential distribution.\nstandard_gamma       Standard Gamma distribution.\nstandard_normal      Standard normal distribution.\nstandard_t           Standard Student's t-distribution.\n==================== =========================================================\n\n==================== =========================================================\nInternal functions\n-------------------- ---------------------------------------------------------\nget_state            Get tuple representing internal state of generator.\nset_state            Set state of generator.\n==================== =========================================================\n<\/module><\/pre>\n    <!--\u3053\u3053\u307e\u3067-->\n    <\/div>\n<\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>random \u2026\u2026 Uniformly distributed floats over <code>[0, 1)<\/code><ul><li>0\uff5e1\u306e\u30e9\u30f3\u30c0\u30e0\uff08\u5747\u4e00\u5206\u5e03\uff09<\/li><\/ul><\/li><li>bytes \u2026\u2026 Uniformly distributed random bytes.<ul><li>\u30d0\u30a4\u30c8\u578b\u306e\u30e9\u30f3\u30c0\u30e0\uff08\u5747\u4e00\u5206\u5e03\uff09<\/li><\/ul><\/li><li>permutation \u2026\u2026 Randomly permute a sequence \/ generate a random sequence.<ul><li>\u5f15\u6570\u6307\u5b9a\u3057\u305f\u6570\u5b57\u307e\u3067\u306e\u6570\u5b57\u3092\u4e26\u3073\u66ff\u3048\u3066NumPy\u914d\u5217\u3067\u623b\u3059<\/li><\/ul><ul><li>np.arange\uff0b\u4e26\u3073\u66ff\u3048<\/li><\/ul><\/li><li>shuffle \u2026\u2026 Randomly permute a sequence in place.<ul><li>\u5f15\u6570\u306eNumPy\u914d\u5217\u3092\u30b7\u30e3\u30c3\u30d5\u30eb\u3057\u3066\u623b\u3059<\/li><\/ul><\/li><li>choice \u2026\u2026 Random sample from 1-D array.<ul><li>\u30e9\u30f3\u30c0\u30e0\u53d6\u308a\u51fa\u3057\u3001\u51fa\u73fe\u78ba\u7387\u6307\u5b9a\u3057\u3066\u53d6\u308a\u51fa\u3057<\/li><\/ul><\/li><li>rand \u2026\u2026 Uniformly distributed values.<ul><li>0\uff5e1\u306e\u30e9\u30f3\u30c0\u30e0\uff08\u5747\u4e00\u5206\u5e03\uff09<\/li><li>random\u3068\u306e\u9055\u3044\u306f<ul><li>\n<a class=\"movelink\" href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/numpy\/ramdom-differences\/\">np.ramdom\u306e\u3010rand,random,ramdom_sample\u3011\u306e\u9055\u3044<\/a>\n<\/li><\/ul><\/li><\/ul><\/li><li>randn \u2026\u2026 Normally distributed values.<ul><li>\u6a19\u6e96\u6b63\u898f\u5206\u5e03\u306b\u5f93\u3063\u305f\u30e9\u30f3\u30c0\u30e0<\/li><\/ul><\/li><li>normal \u2026\u2026 Normal \/ Gaussian distribution.<ul><li>\u6b63\u898f\u5206\u5e03\u3001\u5e73\u5747\u3068\u6a19\u6e96\u504f\u5dee\u3092\u6307\u5b9a\u3067\u304d\u308b<\/li><\/ul><\/li><li>random_sample \u2026\u2026 Alias for random<ul><li>0\uff5e1\u306e\u30e9\u30f3\u30c0\u30e0\uff08\u5747\u4e00\u5206\u5e03\uff09<\/li><li>random\u3068\u306e\u9055\u3044\u306f<ul><li>\n<a class=\"movelink\" href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/numpy\/ramdom-differences\/\">np.ramdom\u306e\u3010rand,random,ramdom_sample\u3011\u306e\u9055\u3044<\/a>\n<\/li><\/ul><\/li><\/ul><\/li><li>seed \u2026\u2026 Seed the legacy random number generator.<ul><li>\u30e9\u30f3\u30c0\u30e0\u5024\u3092\u56fa\u5b9a<\/li><\/ul><\/li><\/ul>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u5b9f\u884c\u30ed\u30b0\">\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-bytes\">np.random.bytes<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u751f\u6210\u51fa\u529b<\/h4>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\na = np.random.bytes(10)\nprint(a)<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">b'\\xda\\xad\\xf4o\\xf8\\x91Xw\\x96\\x98'\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u3082\u3046\u5c11\u3057\u898b\u3084\u3059\u304f<\/h4>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">b = np.frombuffer(a, dtype='|S1')\nprint(b)\nprint(b.shape)<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[b'\\xda' b'\\xad' b'\\xf4' b'o' b'\\xf8' b'\\x91' b'X' b'w' b'\\x96' b'\\x98']\n(10,)\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>dtype=&#8217;|S1&#8217;\u6307\u5b9a\u3067\u3001\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u306e\u7f85\u5217\u30921\u3064\u305a\u3064\u306b\u5206\u3051\u308b<ul><li>10\u500b\u306e\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u304c\u53d6\u5f97\u3067\u304d\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308b<\/li><\/ul><\/li><li>\\x\u3067\u59cb\u307e\u308b\u3082\u306e\u304c16\u9032\u6570\u8868\u8a18\u306e\u6570\u5024<\/li><li>np.frombuffer\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u4e0b\u8a18\u306e\u8a18\u4e8b\u53c2\u7167<\/li><\/ul>\n\n\n\n<div class=\"blogcard\"><a href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/numpy\/something-of-useful\/#toc_id_3_2\/\" data-blogcard=\"1\"><\/a><\/div>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-bytes\">np.random.random<\/h3>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\nprint(np.random.random(10))<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[0.03354005 0.95136527 0.13772939 0.62135773 0.01910842 0.26714388\n 0.40878306 0.34775321 0.6562178  0.4247621 ]\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>0\uff5e1\u306e\u9593<\/li><li>.random_sample\u306e\u30a8\u30a4\u30ea\u30a2\u30b9<ul><li>\u4e0b\u8a18\u8a18\u4e8b\u53c2\u7167<\/li><\/ul><\/li><\/ul>\n\n\n\n<div class=\"blogcard\"><a href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/numpy\/ramdom-differences\/\" data-blogcard=\"1\"><\/a><\/div>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-bytes\">np.random.permutation<\/h3>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\na = np.random.permutation(10)\nprint(a) #\u53d6\u5f97\u3057\u305f\u5024\u306e\u78ba\u8a8d\nprint(type(a)) #type\u3092\u78ba\u8a8d<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[6 5 8 3 1 2 7 0 9 4]\n&lt;class 'numpy.ndarray'=\"\"&gt;\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u91cd\u8907\u306a\u3057<ul><li>\u4f3c\u305f\u3082\u306e\u306brandint\u3001\u3053\u3061\u3089\u306f\u6570\u5024\u306e\u91cd\u8907\u3042\u308b<\/li><\/ul><\/li><li>NumPy\u914d\u5217\u304c\u623b\u308a\u5024<\/li><\/ul>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-bytes\">np.random.shuffle<\/h3>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\na = np.arange(10)\nprint(a) #0\uff5e9\u307e\u3067\u4e26\u3093\u3067\u308b\nnp.random.shuffle(a)\nprint(a) #\u30b7\u30e3\u30c3\u30d5\u30eb\u3055\u308c\u305f<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[0 1 2 3 4 5 6 7 8 9]\n[2 9 1 7 4 0 8 3 5 6]\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>ndarray\uff08NumPy\u914d\u5217\uff09\u5185\u306e\u4e26\u3073\u9806\u3092\u30b7\u30e3\u30c3\u30d5\u30eb<\/li><\/ul>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-bytes\">np.random.choice<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"1000\u307e\u3067\u306e\u6570\u5b57\u304b\u308910\u500b\">1000\u307e\u3067\u306e\u6570\u5b57\u304b\u308910\u500b<\/h4>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\nprint(np.random.choice(1000,10))<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[682 437 557 401 419 940 761 331 555 972]\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u6b63\u5e38\u30d1\u30bf\u30fc\u30f3\">\u3082\u3046\u5c11\u3057\u5c0f\u3055\u306a\u6570\u5b57\u3067\u666e\u901a\u306b\u62bd\u51fa<\/h4>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\na = np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])\nprint(a)\nprint(np.random.choice(a, 8))\nprint(np.random.choice(a, 8))\nprint(np.random.choice(a, 8))<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[0 1 2 3 4 5 6 7 8 9]\n[8 1 5 <font style=\"color:yellowgreen;\">3 3<\/font> 7 9 2]\n[<font style=\"color:yellowgreen;\">3 3<\/font> 6 <font style=\"color:yellowgreen;\">1<\/font> 8 9 2 <font style=\"color:yellowgreen;\">1<\/font>]\n[<font style=\"color:yellowgreen;\">7 2<\/font> 8 <font style=\"color:yellowgreen;\">2<\/font> 1 4 5 <font style=\"color:yellowgreen;\">7<\/font>]\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u91cd\u8907\u3042\u308a\u3067\u62bd\u51fa\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u308b<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u6b63\u5e38\u30d1\u30bf\u30fc\u30f3\">\u91cd\u8907\u306a\u3057\u3067\u62bd\u51fa<\/h4>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\na = np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])\nprint(a)\nprint(a.shape)\nprint(np.random.choice(a, 8, False))\nprint(np.random.choice(a, 8, False))\nprint(np.random.choice(a, 8, False))<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[0 1 2 3 4 5 6 7 8 9]\n(10,)\n[0 6 4 8 9 7 1 5]\n[0 9 1 6 5 7 2 4]\n[5 2 1 6 8 3 7 4]\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u91cd\u8907\u3057\u3066\u3044\u306a\u3044<\/li><li>a\u304c10\u500b\u306endarray\uff08NumPy\u914d\u5217\uff09\u306a\u306e\u3067\u3001\u5f15\u6570\u306e8\u306f11\u4ee5\u4e0a\u306b\u5909\u3048\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044<ul><li>\u300cValueError: Cannot take a larger sample than population when &#8216;replace=False&#8217;\u300d<\/li><\/ul><\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"\u6b63\u5e38\u30d1\u30bf\u30fc\u30f3\">\u51fa\u73fe\u78ba\u7387\u6307\u5b9a\u3057\u3066\u62bd\u51fa<\/h4>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\na = np.array([0,1,2])\nb = np.random.choice(a, 10, replace=True, p=[0.2, 0.2, 0.6])\nprint(b)<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[2 2 0 2 2 1 2 1 2 2]\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>0.6\u3092\u6307\u5b9a\u3057\u305f\u300c2\u300d\u304c\u51fa\u3084\u3059\u304f\u306a\u3063\u3066\u3044\u308b<\/li><li>replace=True\u8a2d\u5b9a\u3057\u305f\u306e\u3067\u3001\u6700\u521d3\u500b\u306e\u6570\u5b57\u309210\u500b\u307e\u3067\u5897\u3084\u305b\u308b<\/li><\/ul>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-rand\">np.random.rand<\/h3>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\nprint(np.random.rand(10))<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[2 2 0 2 2 1 2 1 2 2]\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>0\uff5e1\u306e\u9593<\/li><li>.random_sample\u3068\u4f7f\u3044\u65b9\u304c\u9055\u3046<ul><li>\u4e0b\u8a18\u8a18\u4e8b\u3092\u53c2\u7167<\/li><\/ul><\/li><\/ul>\n\n\n\n<div class=\"blogcard\"><a href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/numpy\/ramdom-differences\/\" data-blogcard=\"1\"><\/a><\/div>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-rand\">np.random.randn<\/h3>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\nprint(np.random.randn(10))<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[-0.32692468 -0.04579719 -0.30446006  1.92301013 -0.078659   -0.58206572\n -1.61798224  0.86726082 -1.04043709  0.65042142]\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6a19\u6e96\u6b63\u898f\u5206\u5e03\u306b\u5f93\u3063\u305f\u30e9\u30f3\u30c0\u30e0\u5024<\/li><li>\u306a\u3060\u3089\u304b\u306a\u5c71\u3001\u4e2d\u5fc3\uff08\u30bc\u30ed\uff09\u306e\u51fa\u73fe\u78ba\u7387\u304c\u9ad8\u304f\u3001\u7aef\u306b\u884c\u304f\u307b\u3069\u3067\u306a\u304f\u306a\u308b<\/li><\/ul>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-rand\">np.random.normal<\/h3>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\nprint(np.random.normal(0, 2.5, size=(2,3)))\n#print(np.random.normal(0, 2.5, size=(2,3))) #\u30ad\u30fc\u30ef\u30fc\u30c9\u300csize\u300d\u306f\u306a\u304f\u3066\u3082\u3044\u3044<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[[ 0.33177074 -1.19035504  3.2711827 ]\n [ 0.4875332   1.00052497 -0.84408084]]\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6b63\u898f\u5206\u5e03\u306b\u5f93\u3063\u305f\u30e9\u30f3\u30c0\u30e0\u5024<ul><li>\u6b63\u898f\u5206\u5e03\u306e\u5f62\uff08\u6a19\u6e96\u504f\u5dee\uff0b\u5206\u6563\uff09\u306f\u5f15\u6570\u3067\u6307\u5b9a<\/li><\/ul><\/li><li>\u5f15\u6570<ul><li>\u7b2c1 \u2026\u2026 \u5e73\u5747<\/li><li>\u7b2c2 \u2026\u2026 \u6a19\u6e96\u504f\u5dee<\/li><li>\u7b2c3 \u2026\u2026 \u623b\u308a\u5024\u306e\u30b5\u30a4\u30ba\u6307\u5b9a<\/li><\/ul><\/li><li>\u6a19\u6e96\u6b63\u898f\u5206\u5e03\u3068\u5c71\u306e\u5f62\u304c\u9055\u3046<ul><li>\u5e73\u5747 \u2026\u2026 \u5c71\u304c\u53f3\u306b\u884c\u3063\u305f\u308a\uff08\u6570\u5b57\u5927\u304d\u304f\uff09\u3001\u5de6\u306b\u884c\u3063\u305f\u308a\uff08\u6570\u5b57\u5c0f\u3055\u304f\uff09<\/li><li>\u6a19\u6e96\u504f\u5dee \u2026\u2026 \u5c71\u304c\u6a2a\u306b\u5e83\u304c\u3063\u305f\u308a\uff08\u6570\u5b57\u5927\u304d\u304f\uff09\u3001\u7e26\u306b\u88dc\u8db3\u306a\u3063\u305f\u308a\uff08\u6570\u5b57\u5c0f\u3055\u304f\uff09<\/li><\/ul><\/li><\/ul>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-rand\">np.random.randint<\/h3>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\na = np.random.randint(-5, 5, 3)\nprint(a)\nprint(a.shape)\nb = np.random.randint(50, 100, (2,3))\nprint(b)\nprint(b.shape)<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[ 2 -3 -5]\n(3,)\n[[86 79 96]\n [70 67 72]]\n(2, 3)\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u7bc4\u56f2\u3068\u500b\u6570\u3092\u6307\u5b9a\u3059\u308b<\/li><li>\u6574\u6570\u5024\u306e\u307f<\/li><li>-5\uff5e4\u306e\u533a\u9593\u3067\u30e9\u30f3\u30c0\u30e0\u50243\u3064<\/li><li>50\uff5e99\u306e\u533a\u9593\u3067\u30e9\u30f3\u30c0\u30e0\u5024\u3092\u6307\u5b9a\u3057\u305fshape\u3067\u8fd4\u3059\uff08\u6307\u5b9a\u306f\u30bf\u30d7\u30eb\uff09<\/li><\/ul>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"np-random-rand\">np.random.seed<\/h3>\n\n\n\n<pre class=\"wp-block-luxe-blocks-syntaxhighlighter line-numbers language-python\"><code class=\"language-python\">import numpy as np\nnp.random.seed(10)\na = np.random.randn(10)\nnp.random.seed(10)\nb = np.random.randn(10)\nnp.random.seed(10)\nc = np.random.randn(5)\nprint(a)\nprint(b)\nprint(c)<\/code><\/pre>\n\n\n\n<pre class=\"result\" style=\"text-align:left;line-height:17px;font-family:Menlo,Consolas,monospace;font-size:14px;padding:30px 0px 10px 15px;margin-top:10px;padding-bottom:-30px!important;\">[ 1.3315865   0.71527897 -1.54540029 -0.00838385  0.62133597 -0.72008556\n  0.26551159  0.10854853  0.00429143 -0.17460021]\n[ 1.3315865   0.71527897 -1.54540029 -0.00838385  0.62133597 -0.72008556\n  0.26551159  0.10854853  0.00429143 -0.17460021]\n[ 1.3315865   0.71527897 -1.54540029 -0.00838385  0.62133597]\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u3044\u3064\u3082\u540c\u3058\u30e9\u30f3\u30c0\u30e0\u5024\u3092\u9078\u629e\u3059\u308b<\/li><li>\u53d6\u5f97\u3059\u308b\u6570\u3092\u6e1b\u3089\u3057\u3066\u3082\u540c\u3058\u306b\u306a\u308b\uff08\u4e0a\u8a18\u4f8b\u3067\u306f10\u21d25\u306b\u3057\u3066\u307f\u305f\uff09<\/li><\/ul>\n\n\n\n<!--\u76ee\u6b21\u3078\u3001\u30da\u30fc\u30b8\u306e\u5148\u982d\u3078-->\n<div id=\"backcontainer\"><a id=\"linkmokuji\" href=\"javascript:backContainer();\">\u76ee\u6b21\u3078\uff1e\uff1e<\/a>\u3000<a id=\"linktop\" href=\"#\">\u5148\u982d\u3078\uff1e\uff1e<\/a><\/div>\n\n\n<p><!--\u518d\u5229\u7528\u30d6\u30ed\u30c3\u30af\uff08numpy-footer\uff09--><br \/>\n\n<div class=\"back-link\"><div class=\"wp-block-columns\">\n<div class=\"wp-block-column contents-link-line\"><p><a href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/ai-top\/ai-summary\/\">AI\u307e\u3068\u3081<\/a><\/p><\/div>\n<div class=\"wp-block-column contents-link-line\"><p><a href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/ai-top\/docker-wsl\/\">DOCKER\/WSL<\/a><\/p><\/div>\n<div class=\"wp-block-column contents-link-line\"><p><a href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/ai-top\/development\/\">AI\u958b\u767a<\/a><\/p><\/div>\n<\/div><div class=\"wp-block-columns\">\n<div class=\"wp-block-column contents-link-line nowon\"><p><a href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/ai-top\/library\/\">\u30e9\u30a4\u30d6\u30e9\u30ea<\/a><\/p><\/div>\n<div class=\"wp-block-column contents-link-line\"><p><a href=\"https:\/\/broaden-your-horizons.com\/ai-ss\/ai-top\/pooping\/\">\u3046\u3093\u3061\u304f<\/a><\/p><\/div>\n<div class=\"wp-block-column contents-link-line blank\"><p><\/p><\/div>\n<!--<div class=\"wp-block-column contents-link-line blank\"><p><a href=\"#\"><\/a><\/p><\/div>-->\n<\/div><\/div>\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30b5\u30de\u30ea .bytes \u30d0\u30a4\u30c8\u578b\u30e9\u30f3\u30c0\u30e0\u5024 .random .random_sample\u3068\u540c\u3058 .permutation \u91cd\u8907\u306a\u3057\u30e9\u30f3\u30c0\u30e0\u5024 .shuffle ndarray\u306e\u4e26\u3073\u9806\u30b7\u30e3\u30c3\u30d5\u30eb .choice ndarra [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":282,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55],"tags":[47,54],"class_list":["post-4774","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-numpy","tag-numpy","tag-54"],"_links":{"self":[{"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/posts\/4774","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/comments?post=4774"}],"version-history":[{"count":51,"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/posts\/4774\/revisions"}],"predecessor-version":[{"id":7033,"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/posts\/4774\/revisions\/7033"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/media\/282"}],"wp:attachment":[{"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/media?parent=4774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/categories?post=4774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/broaden-your-horizons.com\/ai-ss\/wp-json\/wp\/v2\/tags?post=4774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}