{"id":421,"date":"2023-04-03T02:30:57","date_gmt":"2023-04-03T02:30:57","guid":{"rendered":"https:\/\/yunshangtulv.com.cn\/?p=421"},"modified":"2023-04-03T02:30:57","modified_gmt":"2023-04-03T02:30:57","slug":"r%e8%af%ad%e8%a8%80%e7%bb%9f%e8%ae%a1%e5%88%86%e6%9e%90%e4%b8%80%e8%a7%88","status":"publish","type":"post","link":"https:\/\/yunshangtulv.com.cn\/?p=421","title":{"rendered":"R\u8bed\u8a00\u7edf\u8ba1\u5206\u6790\u4e00\u89c8"},"content":{"rendered":"

R\u8bed\u8a00\u662f\u7edf\u8ba1\u5206\u6790\u7684\u5f3a\u5927\u5de5\u5177\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u7edf\u8ba1\u51fd\u6570\u548c\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662fR\u8bed\u8a00\u7edf\u8ba1\u5206\u6790\u7684\u8be6\u89e3\u53ca\u5e94\u7528\u5b9e\u4f8b\uff1a<\/p>\n

    \n
  1. \u63cf\u8ff0\u6027\u7edf\u8ba1\u5206\u6790\uff1a<\/li>\n<\/ol>\n
    \n
    <\/div>\n
    # \u521b\u5efa\u4e00\u4e2a\u6570\u503c\u5411\u91cf<\/span>
    \ndata <-<\/span> c<\/span>(<\/span>12<\/span>,<\/span> 34<\/span>,<\/span> 56<\/span>,<\/span> 23<\/span>,<\/span> 45<\/span>,<\/span> 67<\/span>,<\/span> 89<\/span>,<\/span> 22<\/span>,<\/span> 47<\/span>,<\/span> 56<\/span>)<\/span><\/p>\n

    # \u8ba1\u7b97\u5747\u503c<\/span>
    \nmean_value <-<\/span> mean(<\/span>data)<\/span>
    \nprint(<\/span>mean_value)<\/span> # \u8f93\u51fa\uff1a45.1<\/span><\/p>\n

    # \u8ba1\u7b97\u4e2d\u4f4d\u6570<\/span>
    \nmedian_value <-<\/span> median(<\/span>data)<\/span>
    \nprint(<\/span>median_value)<\/span> # \u8f93\u51fa\uff1a45.5<\/span><\/p>\n

    # \u8ba1\u7b97\u65b9\u5dee<\/span>
    \nvar_value <-<\/span> var(<\/span>data)<\/span>
    \nprint(<\/span>var_value)<\/span> # \u8f93\u51fa\uff1a665.4333<\/span><\/p>\n

    # \u8ba1\u7b97\u6807\u51c6\u5dee<\/span>
    \nsd_value <-<\/span> sd(<\/span>data)<\/span>
    \nprint(<\/span>sd_value)<\/span> # \u8f93\u51fa\uff1a25.80739<\/span>
    \n<\/code><\/div>\n<\/div>\n

      \n
    1. \u76f8\u5173\u6027\u5206\u6790\uff1a<\/li>\n<\/ol>\n
      \n
      <\/div>\n
      # \u521b\u5efa\u4e24\u4e2a\u6570\u503c\u5411\u91cf<\/span>
      \ndata_x <-<\/span> c<\/span>(<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>,<\/span> 6<\/span>,<\/span> 7<\/span>,<\/span> 8<\/span>,<\/span> 9<\/span>,<\/span> 10<\/span>)<\/span>
      \ndata_y <-<\/span> c<\/span>(<\/span>3<\/span>,<\/span> 6<\/span>,<\/span> 9<\/span>,<\/span> 12<\/span>,<\/span> 15<\/span>,<\/span> 18<\/span>,<\/span> 21<\/span>,<\/span> 24<\/span>,<\/span> 27<\/span>,<\/span> 30<\/span>)<\/span><\/p>\n

      # \u8ba1\u7b97\u76ae\u5c14\u900a\u76f8\u5173\u7cfb\u6570<\/span>
      \ncor_value <-<\/span> cor(<\/span>data_x,<\/span> data_y)<\/span>
      \nprint(<\/span>cor_value)<\/span> # \u8f93\u51fa\uff1a1<\/span>
      \n<\/code><\/div>\n<\/div>\n

        \n
      1. \u7ebf\u6027\u56de\u5f52\u5206\u6790\uff1a<\/li>\n<\/ol>\n
        \n
        <\/div>\n
        # \u4f7f\u7528\u4e4b\u524d\u7684\u4e24\u4e2a\u6570\u503c\u5411\u91cfdata_x\u548cdata_y\u8fdb\u884c\u7ebf\u6027\u56de\u5f52\u5206\u6790<\/span>
        \nlinear_regression <-<\/span> lm(<\/span>data_y ~<\/span> data_x)<\/span><\/p>\n

        # \u67e5\u770b\u56de\u5f52\u6a21\u578b\u7684\u6458\u8981\u4fe1\u606f<\/span>
        \nsummary(<\/span>linear_regression)<\/span>
        \n<\/code><\/div>\n<\/div>\n

          \n
        1. t\u68c0\u9a8c\uff1a<\/li>\n<\/ol>\n
          \n
          <\/div>\n
          # \u521b\u5efa\u4e24\u4e2a\u6570\u503c\u5411\u91cf\uff0c\u8868\u793a\u4e24\u7ec4\u6570\u636e<\/span>
          \ngroup1 <-<\/span> c<\/span>(<\/span>30<\/span>,<\/span> 28<\/span>,<\/span> 32<\/span>,<\/span> 35<\/span>,<\/span> 29<\/span>,<\/span> 28<\/span>,<\/span> 33<\/span>,<\/span> 31<\/span>)<\/span>
          \ngroup2 <-<\/span> c<\/span>(<\/span>27<\/span>,<\/span> 26<\/span>,<\/span> 28<\/span>,<\/span> 29<\/span>,<\/span> 30<\/span>,<\/span> 25<\/span>,<\/span> 24<\/span>,<\/span> 23<\/span>)<\/span><\/p>\n

          # \u8fdb\u884c\u72ec\u7acb\u53cc\u6837\u672ct\u68c0\u9a8c<\/span>
          \nt_test_result <-<\/span> t.test(<\/span>group1,<\/span> group2)<\/span>
          \nprint(<\/span>t_test_result)<\/span>
          \n<\/code><\/div>\n<\/div>\n

            \n
          1. \u5361\u65b9\u68c0\u9a8c\uff1a<\/li>\n<\/ol>\n
            \n
            <\/div>\n
            # \u521b\u5efa\u4e00\u4e2a\u5217\u8054\u8868\uff0c\u8868\u793a\u4e24\u4e2a\u5206\u7c7b\u53d8\u91cf\u7684\u8ba1\u6570<\/span>
            \ncontingency_table <-<\/span> matrix(<\/span>c<\/span>(<\/span>15<\/span>,<\/span> 20<\/span>,<\/span> 10<\/span>,<\/span> 5<\/span>,<\/span> 20<\/span>,<\/span> 10<\/span>,<\/span> 20<\/span>,<\/span> 30<\/span>)<\/span>,<\/span> nrow =<\/span> 2<\/span>)<\/span><\/p>\n

            # \u8fdb\u884c\u5361\u65b9\u68c0\u9a8c<\/span>
            \nchi_square_result <-<\/span> chisq.test(<\/span>contingency_table)<\/span>
            \nprint(<\/span>chi_square_result)<\/span>
            \n<\/code><\/div>\n<\/div>\n

            \u5728\u8fd9\u4e9b\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c55\u793a\u4e86\u5982\u4f55\u5728R\u4e2d\u8fdb\u884c\u63cf\u8ff0\u6027\u7edf\u8ba1\u5206\u6790\u3001\u76f8\u5173\u6027\u5206\u6790\u3001\u7ebf\u6027\u56de\u5f52\u5206\u6790\u3001t\u68c0\u9a8c\u548c\u5361\u65b9\u68c0\u9a8c\u3002\u5b9e\u9645\u4e0a\uff0cR\u8bed\u8a00\u63d0\u4f9b\u4e86\u8bb8\u591a\u5176\u4ed6\u7edf\u8ba1\u65b9\u6cd5\uff0c\u4f8b\u5982\u65b9\u5dee\u5206\u6790\uff08ANOVA\uff09\u3001\u4e3b\u6210\u5206\u5206\u6790\uff08PCA\uff09\u548c\u805a\u7c7b\u5206\u6790\u7b49\u3002\u5177\u4f53\u7684\u7edf\u8ba1\u65b9\u6cd5\u53d6\u51b3\u4e8e\u60a8\u7684\u6570\u636e\u7c7b\u578b\u548c\u7814\u7a76\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

            R\u8bed\u8a00\u662f\u7edf\u8ba1\u5206\u6790\u7684\u5f3a\u5927\u5de5\u5177\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u7edf\u8ba1\u51fd\u6570\u548c\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662fR\u8bed\u8a00\u7edf\u8ba1\u5206\u6790\u7684\u8be6\u89e3\u53ca\u5e94\u7528\u5b9e\u4f8b\uff1a \u63cf\u8ff0\u6027\u7edf\u8ba1\u5206\u6790 […]<\/p>\n","protected":false},"author":111,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-421","post","type-post","status-publish","format-standard","hentry","category-r"],"_links":{"self":[{"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/users\/111"}],"replies":[{"embeddable":true,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=421"}],"version-history":[{"count":0,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/421\/revisions"}],"wp:attachment":[{"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunshangtulv.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}