{"id":240,"date":"2020-01-14T22:00:27","date_gmt":"2020-01-14T13:00:27","guid":{"rendered":"https:\/\/obgyn.jp\/?p=240"},"modified":"2022-03-13T19:52:54","modified_gmt":"2022-03-13T10:52:54","slug":"ttest","status":"publish","type":"post","link":"https:\/\/obgyn.jp\/?p=240","title":{"rendered":"Python \u306b\u3088\u308b\u72ec\u7acb2\u7fa4\u306e\u6bd4\u8f03"},"content":{"rendered":"\n<p><a href=\"https:\/\/docs.scipy.org\/doc\/scipy\/reference\/generated\/scipy.stats.ttest_ind.html\" rel=\"noopener noreferrer\" target=\"_blank\">scipy.stats.ttest_ind()<\/a> \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u3001\u72ec\u7acb2\u7fa4\u3092\u6bd4\u8f03\u3059\u308b\u3002<\/p>\n\n\n\n<p>Python \u3092\u8d77\u52d5\u3057\u3001pandas \u3068 scipy.stats \u3092 import \u3059\u308b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">import pandas as pd\nfrom scipy import stats<\/pre>\n\n\n\n<p>\u901a\u5e38\u306f Excel \u7b49\u3067\u4f5c\u6210\u3057\u305f CSV \u30d5\u30a1\u30a4\u30eb\u3092 pandas \u306b\u8aad\u307f\u8fbc\u3093\u3067\u5206\u6790\u3059\u308b\u3002\u3057\u304b\u3057\u3001\u3053\u3053\u3067\u306f\u4fbf\u5b9c\u7684\u306b\u4ee5\u4e0b\u306e\u7c21\u5358\u306a\u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u3092\u4f5c\u6210\u3057\u3001data \u3068\u3044\u3046\u5909\u6570\u306b\u683c\u7d0d\u3057\u3066\u304a\u304f\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">data = pd.DataFrame({\"\u624b\u8853\u65b9\u6cd5\":[\"\u5185\u8996\u93e1\",\"\u958b\u8179\",\"\u958b\u8179\",\"\u5185\u8996\u93e1\",\"\u5185\u8996\u93e1\",\"\u5185\u8996\u93e1\",\"\u958b\u8179\",\"\u958b\u8179\"], \"\u624b\u8853\u6642\u9593\":[60,50,100,90,30,40,80,90], \"\u51fa\u8840\u91cf\":[15,100,90,20,18,20,120,90]})<\/pre>\n\n\n\n<p>data \u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">data<\/pre>\n\n\n\n<p>query() \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u3001\u624b\u8853\u65b9\u6cd5\uff08\u5185\u8996\u93e1\u304b\u958b\u8179\u304b\uff09\u306b\u3088\u3063\u3066\u3000data \u30922\u7fa4\u306b\u30b0\u30eb\u30fc\u30d7\u5206\u3051\u3059\u308b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">A = data.query('\u624b\u8853\u65b9\u6cd5 == \"\u5185\u8996\u93e1\"')\nB = data.query('\u624b\u8853\u65b9\u6cd5 == \"\u958b\u8179\"')<\/pre>\n\n\n\n<p>\u305d\u308c\u305e\u308c\u306e\u30b0\u30eb\u30fc\u30d7\u306e\u5e73\u5747\u7b49\u306e\u57fa\u672c\u7d71\u8a08\u91cf\u306f describe() \u30b3\u30de\u30f3\u30c9\u306b\u3088\u3063\u3066\u5f97\u3089\u308c\u308b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">A.describe()\nB.describe()<\/pre>\n\n\n\n<p>A \u7fa4\u3001B \u7fa4\u306e\u624b\u8853\u6642\u9593\u3068\u51fa\u8840\u91cf\u3092 Student t test \u3067\u6bd4\u8f03\u3059\u308b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">stats.ttest_ind(A[\"\u624b\u8853\u6642\u9593\"], B[\"\u624b\u8853\u6642\u9593\"]) #\u624b\u8853\u6642\u9593\u306e\u6bd4\u8f03 \nstats.ttest_ind(A[\"\u51fa\u8840\u91cf\"], B[\"\u51fa\u8840\u91cf\"]) #\u51fa\u8840\u91cf\u306e\u6bd4\u8f03<\/pre>\n\n\n\n<p>\u53e4\u5178\u7684\u306a Student t test \u4ee5\u5916\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u308b\uff08\u3053\u3053\u3067\u306f\u624b\u8853\u6642\u9593\u3092\u6bd4\u8f03\uff09\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">stats.ttest_ind(A[\"\u624b\u8853\u6642\u9593\"], B[\"\u624b\u8853\u6642\u9593\"], equal_var = False) # Welch t test\nstats.mannwhitneyu(A[\"\u624b\u8853\u6642\u9593\"], B[\"\u624b\u8853\u6642\u9593\"]) #\u30de\u30f3\u30fb\u30db\u30a4\u30c3\u30c8\u30cb\u30fc u test<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>scipy.stats.ttest_ind() \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u3001\u72ec\u7acb2\u7fa4\u3092\u6bd4\u8f03\u3059\u308b\u3002 Python \u3092\u8d77\u52d5\u3057\u3001pandas \u3068 scipy.stats \u3092 import \u3059\u308b\u3002 \u901a\u5e38\u306f Excel \u7b49\u3067\u4f5c\u6210\u3057\u305f CSV  &hellip; <a href=\"https:\/\/obgyn.jp\/?p=240\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">Python \u306b\u3088\u308b\u72ec\u7acb2\u7fa4\u306e\u6bd4\u8f03<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[36],"class_list":["post-240","post","type-post","status-publish","format-standard","hentry","category-data-science","tag-python"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/posts\/240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/obgyn.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=240"}],"version-history":[{"count":39,"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/posts\/240\/revisions"}],"predecessor-version":[{"id":1078,"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/posts\/240\/revisions\/1078"}],"wp:attachment":[{"href":"https:\/\/obgyn.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obgyn.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obgyn.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}