{"id":2990,"date":"2022-02-20T21:13:04","date_gmt":"2022-02-20T13:13:04","guid":{"rendered":"https:\/\/egonlin.com\/?p=2990"},"modified":"2022-02-20T21:23:33","modified_gmt":"2022-02-20T13:23:33","slug":"%e7%ac%ac%e5%85%ad%e8%8a%82%ef%bc%9a%e5%af%b9%e6%95%b0%e7%ba%bf%e6%80%a7%e5%9b%9e%e5%bd%92%e6%b3%a2%e5%a3%ab%e9%a1%bf%e6%88%bf%e4%bb%b7%e9%a2%84%e6%b5%8b","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=2990","title":{"rendered":"\u7b2c\u516d\u8282\uff1a\u5bf9\u6570\u7ebf\u6027\u56de\u5f52"},"content":{"rendered":"

\u5bf9\u6570\u7ebf\u6027\u56de\u5f52(\u6ce2\u58eb\u987f\u623f\u4ef7\u9884\u6d4b)<\/h1>\n

\u5bfc\u5165\u6a21\u5757<\/h1>\n
import pandas as pd\nimport numpy as np\nimport matplotlib.pyplot as plt\nfrom matplotlib.font_manager import FontProperties\nfrom sklearn.linear_model import LinearRegression\nfrom sklearn.metrics import r2_score\n%matplotlib inline\nfont = FontProperties(fname='\/Library\/Fonts\/Heiti.ttc')<\/code><\/pre>\n
\u83b7\u53d6\u6570\u636e<\/h1>\n
  \u5728\u300a\u4ee3\u7801-\u666e\u901a\u7ebf\u6027\u56de\u5f52\u300b\u7684\u65f6\u5019\u8bf4\u5230\u7279\u5f81LSTAT\u548c\u6807\u8bb0MEDV\u6709\u6700\u9ad8\u7684\u76f8\u5173\u6027\uff0c\u4f46\u662f\u5b83\u4eec\u4e4b\u95f4\u5e76\u4e0d\u662f\u7ebf\u6027\u5173\u7cfb\uff0c\u5c1d\u8bd5\u591a\u9879\u5f0f\u56de\u5f52\u53d1\u73b0\u53ef\u4ee5\u5f97\u5230\u4e0d\u9519\u7684\u7ed3\u679c\uff0c\u4f46\u662f\u591a\u9879\u5f0f\u53ef\u80fd\u4f1a\u589e\u52a0\u6a21\u578b\u7684\u590d\u6742\u5ea6\u5bb9\u6613\u5bfc\u81f4\u8fc7\u62df\u5408\u7684\u95ee\u9898\u51fa\u73b0\uff0c\u662f\u4e0d\u662f\u53ef\u4ee5\u5047\u8bbe\u7279\u5f81\u548c\u6807\u8bb0\u4e4b\u95f4\u53ef\u80fd\u7b26\u5408\u5bf9\u6570\u7ebf\u6027\u56de\u5f52\u5462\uff1f\u5373$y$\u548c$x$\u7684\u5173\u7cfb\u4e3a
\n$$
\nln(y) = x
\n$$
\n  \u4e0b\u9762\u5c06\u4f7f\u7528\u5bf9\u6570\u7ebf\u6027\u56de\u5f52\u505a\u5c1d\u8bd5\u3002<\/p>\n
df = pd.read_csv('housing-data.txt', sep='\\s+', header=0)\nX = df[['LSTAT']].values\ny = df['MEDV'].values\n\n# np.log()\u9ed8\u8ba4\u4ee5$e$\u4e3a\u5e95\u6570\ny_sqrt = np.log(y)<\/code><\/pre>\n
\u8bad\u7ec3\u6a21\u578b<\/h1>\n
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\u67e5\u770b\u66f4\u591a<\/h2>
\u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div>
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\u5bf9\u6570\u7ebf\u6027\u56de\u5f52(\u6ce2\u58eb\u987f\u623f\u4ef7\u9884\u6d4b) \u5bfc\u5165\u6a21\u5757 import pandas as pd import numpy a […]<\/p>\n","protected":false},"author":3,"featured_media":2991,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[276,286],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/2990"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2990"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/2990\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/2991"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}