{"id":3127,"date":"2023-07-19T01:59:22","date_gmt":"2023-07-19T01:59:22","guid":{"rendered":"https:\/\/statorials.org\/ko\/%e1%84%91%e1%85%a2%e1%86%ab%e1%84%83%e1%85%a5-t-%e1%84%90%e1%85%a6%e1%84%89%e1%85%b3%e1%84%90%e1%85%b3\/"},"modified":"2023-07-19T01:59:22","modified_gmt":"2023-07-19T01:59:22","slug":"%e1%84%91%e1%85%a2%e1%86%ab%e1%84%83%e1%85%a5-t-%e1%84%90%e1%85%a6%e1%84%89%e1%85%b3%e1%84%90%e1%85%b3","status":"publish","type":"post","link":"https:\/\/statorials.org\/ko\/%e1%84%91%e1%85%a2%e1%86%ab%e1%84%83%e1%85%a5-t-%e1%84%90%e1%85%a6%e1%84%89%e1%85%b3%e1%84%90%e1%85%b3\/","title":{"rendered":"Pandas\uc5d0\uc11c t-\ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95(\uc608\uc81c 3\uac1c)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\ub2e4\uc74c \uc608\uc5d0\uc11c\ub294 Pandas DataFrame\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc138 \uac00\uc9c0 \ub2e4\ub978 t-\ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\ub3c5\ub9bd 2-\ud45c\ubcf8 t-\uac80\uc815<\/span><\/li>\n<li> <span style=\"color: #000000;\">Welch\uc758 2-\ud45c\ubcf8 t-\uac80\uc815<\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc30d\uc744 \uc774\ub8e8\ub294 \ud45c\ubcf8 t-\uac80\uc815<\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>\uc608 1: Pandas\uc758 \ub3c5\ub9bd 2-\ud45c\ubcf8 t-\uac80\uc815<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/ko\/\u1103\u116e-\u1109\u1162\u11b7\u1111\u1173\u11af\u110b\u1173\u11af-\u1110\u1166\u1109\u1173\u1110\u1173\u1112\u1162-\u1107\u1169\u1109\u1166\u110b\u116d\/\" target=\"_blank\" rel=\"noopener\">\ub3c5\ub9bd 2-\ud45c\ubcf8 t-\uac80\uc815\uc740<\/a> \ub450 \ubaa8\uc9d1\ub2e8\uc758 \ud3c9\uade0\uc774 \uac19\uc740\uc9c0 \uc5ec\ubd80\ub97c \ud655\uc778\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc608\ub97c \ub4e4\uc5b4, \uad50\uc218\uac00 \uc11c\ub85c \ub2e4\ub978 \ub450 \uac00\uc9c0 \ud559\uc2b5 \ubc29\ubc95\uc73c\ub85c \uc778\ud574 \uc2dc\ud5d8 \ud3c9\uade0 \uc131\uc801\uc774 \ub2ec\ub77c\uc9c0\ub294\uc9c0 \uc5ec\ubd80\ub97c \uc54c\uace0 \uc2f6\uc5b4\ud55c\ub2e4\uace0 \uac00\uc815\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774\ub97c \ud14c\uc2a4\ud2b8\ud558\uae30 \uc704\ud574 \uadf8\ub294 \ubc29\ubc95 A\ub97c \uc0ac\uc6a9\ud558\ub294 \ud559\uc0dd 10\uba85\uacfc \ubc29\ubc95 B\ub97c \uc0ac\uc6a9\ud558\ub294 \ud559\uc0dd 10\uba85\uc744 \ubaa8\uc9d1\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 \uac01 \ud559\uc0dd\uc758 \uc810\uc218\ub97c pandas DataFrame\uc5d0 \uc785\ub825\ud55c \ub2e4\uc74c <strong>SciPy<\/strong> \ub77c\uc774\ube0c\ub7ec\ub9ac\uc758 <a href=\"https:\/\/docs.scipy.org\/doc\/scipy\/reference\/generated\/scipy.stats.ttest_ind.html\" target=\"_blank\" rel=\"noopener\">ttest_ind()<\/a> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub3c5\ub9bd\uc801\uc778 2-\ud45c\ubcf8 t-\uac80\uc815\uc744 \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n<span style=\"color: #008000;\">from<\/span> scipy. <span style=\"color: #3366ff;\">stats<\/span> <span style=\"color: #008000;\">import<\/span> ttest_ind\n\n<span style=\"color: #008080;\">#create pandas DataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({'method': ['A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',\n                              'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B'],\n                   'score': [71, 72, 72, 75, 78, 81, 82, 83, 89, 91, 80, 81, 81,\n                             84, 88, 88, 89, 90, 90, 91]})\n\n<span style=\"color: #008080;\">#view first five rows of DataFrame\n<\/span>df. <span style=\"color: #3366ff;\">head<\/span> ()\n\n  method score\n0 to 71\n1 To 72\n2 To 72\n3 to 75\n4 to 78\n\n<span style=\"color: #008080;\">#define samples\n<\/span>group1 = df[df[' <span style=\"color: #ff0000;\">method<\/span> ']==' <span style=\"color: #ff0000;\">A<\/span> ']\ngroup2 = df[df[' <span style=\"color: #ff0000;\">method<\/span> ']==' <span style=\"color: #ff0000;\">B<\/span> ']\n\n<span style=\"color: #008080;\">#perform independent two sample t-test\n<\/span>ttest_ind(group1[' <span style=\"color: #ff0000;\">score<\/span> '], group2[' <span style=\"color: #ff0000;\">score<\/span> '])\n\nTtest_indResult(statistic=-2.6034304605397938, pvalue=0.017969284594810425)\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">\uacb0\uacfc\uc5d0\uc11c \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/span><\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">t-\uac80\uc815 \ud1b5\uacc4: \u2013 <strong>2.6034<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">p-\uac12: <strong>0.0179<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">p-\uac12\uc774 0.05\ubcf4\ub2e4 \uc791\uae30 \ub54c\ubb38\uc5d0 t-\uac80\uc815\uc758 \uadc0\ubb34 \uac00\uc124\uc744 \uae30\uac01\ud558\uace0 \ub450 \ubc29\ubc95\uc774 \uc11c\ub85c \ub2e4\ub978 \ud3c9\uade0 \uc2dc\ud5d8 \uc810\uc218\ub97c \uac00\uc838\uc628\ub2e4\ub294 \uc99d\uac70\uac00 \ucda9\ubd84\ud558\ub2e4\ub294 \uacb0\ub860\uc744 \ub0b4\ub9bd\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\uc608 2: \ud32c\ub354\uc758 Welch&#8217;s t-test<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/ko\/\u110b\u1170\u11af\u110e\u1175\u1109\u1173-t-\u1110\u1166\u1109\u1173\u1110\u1173\/\" target=\"_blank\" rel=\"noopener\">Welch\uc758 t-\uac80\uc815\uc740<\/a> \ud45c\ubcf8\uc744 \ucd94\ucd9c\ud55c \ub450 \ubaa8\uc9d1\ub2e8\uc758 <a href=\"https:\/\/statorials.org\/ko\/\u1103\u1173\u11bc\u1107\u116e\u11ab\u1109\u1161\u11ab-\u1100\u1161\u110c\u1165\u11bc\/\" target=\"_blank\" rel=\"noopener\">\ubd84\uc0b0\uc774 \ub3d9\uc77c\ud558\ub2e4\uace0<\/a> \uac00\uc815\ud558\uc9c0 \uc54a\ub294\ub2e4\ub294 \uc810\uc744 \uc81c\uc678\ud558\uba74 \ub3c5\ub9bd 2-\ud45c\ubcf8 t-\uac80\uc815\uacfc \uc720\uc0ac\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774\uc804 \uc608\uc81c\uc640 \uc815\ud655\ud788 \ub3d9\uc77c\ud55c \ub370\uc774\ud130 \uc138\ud2b8\uc5d0 \ub300\ud574 Welch\uc758 t-\uac80\uc815\uc744 \uc218\ud589\ud558\ub824\uba74 \ub2e4\uc74c\uacfc \uac19\uc774 <strong>ttest_ind<\/strong> () \ud568\uc218\uc5d0 <strong>equal_var=False\ub97c<\/strong> \uc9c0\uc815\ud558\uba74 \ub429\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n<span style=\"color: #008000;\">from<\/span> scipy. <span style=\"color: #3366ff;\">stats<\/span> <span style=\"color: #008000;\">import<\/span> ttest_ind\n\n<span style=\"color: #008080;\">#create pandas DataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({'method': ['A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',\n                              'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B'],\n                   'score': [71, 72, 72, 75, 78, 81, 82, 83, 89, 91, 80, 81, 81,\n                             84, 88, 88, 89, 90, 90, 91]})\n\n<span style=\"color: #008080;\">#define samples\n<\/span>group1 = df[df[' <span style=\"color: #ff0000;\">method<\/span> ']==' <span style=\"color: #ff0000;\">A<\/span> ']\ngroup2 = df[df[' <span style=\"color: #ff0000;\">method<\/span> ']==' <span style=\"color: #ff0000;\">B<\/span> ']\n\n<span style=\"color: #008080;\">#perform Welch's t-test\n<\/span>ttest_ind(group1[' <span style=\"color: #ff0000;\">score<\/span> '], group2[' <span style=\"color: #ff0000;\">score<\/span> '], equal_var= <span style=\"color: #008000;\">False<\/span> )\n\nTtest_indResult(statistic=-2.603430460539794, pvalue=0.02014688617423973)\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">\uacb0\uacfc\uc5d0\uc11c \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">t-\uac80\uc815 \ud1b5\uacc4: \u2013 <strong>2.6034<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">p-\uac12: <strong>0.0201<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">p-\uac12\uc774 0.05\ubcf4\ub2e4 \uc791\uae30 \ub54c\ubb38\uc5d0 Welch\uc758 t-\uac80\uc815\uc758 \uadc0\ubb34 \uac00\uc124\uc744 \uae30\uac01\ud558\uace0 \ub450 \ubc29\ubc95\uc774 \uc11c\ub85c \ub2e4\ub978 \ud3c9\uade0 \uc2dc\ud5d8 \uc810\uc218\ub97c \uac00\uc838\uc628\ub2e4\ub294 \uc99d\uac70\uac00 \ucda9\ubd84\ud558\ub2e4\ub294 \uacb0\ub860\uc744 \ub0b4\ub9bd\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\uc608 3: Pandas\uc5d0\uc11c \uc30d\uc744 \uc774\ub8e8\ub294 \uc0d8\ud50c t-\ud14c\uc2a4\ud2b8<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/ko\/\u110a\u1161\u11bc\u110b\u1173\u11af-\u110b\u1175\u1105\u116e\u1102\u1173\u11ab-\u1111\u116d\u1107\u1169\u11ab-t-\u1100\u1165\u11b7\u110c\u1165\u11bc\/\" target=\"_blank\" rel=\"noopener\">\uc30d\ud45c\ubcf8 t-\uac80\uc815\uc740<\/a> \ud55c \ud45c\ubcf8\uc758 \uac01 \uad00\uce21\uce58\uac00 \ub2e4\ub978 \ud45c\ubcf8\uc758 \uad00\uce21\uce58\uc640 \uc5f0\uad00\ub420 \uc218 \uc788\ub294 \ub450 \ubaa8\uc9d1\ub2e8 \ud3c9\uade0\uc774 \ub3d9\uc77c\ud55c\uc9c0 \uc5ec\ubd80\ub97c \ud655\uc778\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc608\ub97c \ub4e4\uc5b4, \uad50\uc218\uac00 \uc11c\ub85c \ub2e4\ub978 \ub450 \uac00\uc9c0 \ud559\uc2b5 \ubc29\ubc95\uc73c\ub85c \uc778\ud574 \uc2dc\ud5d8 \ud3c9\uade0 \uc131\uc801\uc774 \ub2ec\ub77c\uc9c0\ub294\uc9c0 \uc5ec\ubd80\ub97c \uc54c\uace0 \uc2f6\uc5b4\ud55c\ub2e4\uace0 \uac00\uc815\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774\ub97c \ud14c\uc2a4\ud2b8\ud558\uae30 \uc704\ud574 \uadf8\ub294 \ubc29\ubc95 A\ub97c \uc0ac\uc6a9\ud560 \ud559\uc0dd 10\uba85\uc744 \ubaa8\uc9d1\ud55c \ud6c4 \ud14c\uc2a4\ud2b8\ub97c \uc9c4\ud589\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \uadf8\ub294 \ubc29\ubc95 B\ub97c \uc0ac\uc6a9\ud55c \ub3d9\uc77c\ud55c 10\uba85\uc758 \ud559\uc0dd\uc5d0\uac8c \ube44\uc2b7\ud55c \ub09c\uc774\ub3c4\uc758 \ub610 \ub2e4\ub978 \uc2dc\ud5d8\uc744 \uc900\ube44\ud558\uace0 \uce58\ub974\uac8c \ud588\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ubaa8\ub4e0 \ud559\uc0dd\uc774 \ub450 \ud45c\ubcf8 \ubaa8\ub450\uc5d0 \ub098\ud0c0\ub098\ubbc0\ub85c \uc774 \uc2dc\ub098\ub9ac\uc624\uc5d0\uc11c\ub294 \ub300\uc751 \ud45c\ubcf8 t-\uac80\uc815\uc744 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 \uac01 \ud559\uc0dd\uc758 \uc810\uc218\ub97c pandas DataFrame\uc5d0 \uc785\ub825\ud55c \ub2e4\uc74c <strong>SciPy<\/strong> \ub77c\uc774\ube0c\ub7ec\ub9ac\uc758 <a href=\"https:\/\/docs.scipy.org\/doc\/scipy\/reference\/generated\/scipy.stats.ttest_rel.html\" target=\"_blank\" rel=\"noopener\">ttest_rel()<\/a> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc30d \uc0d8\ud50c t-\ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n<span style=\"color: #008000;\">from<\/span> scipy. <span style=\"color: #3366ff;\">stats<\/span> <span style=\"color: #008000;\">import<\/span> ttest_rel\n\n<span style=\"color: #008080;\">#create pandas DataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({'method': ['A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',\n                              'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B'],\n                   'score': [71, 72, 72, 75, 78, 81, 82, 83, 89, 91, 80, 81, 81,\n                             84, 88, 88, 89, 90, 90, 91]})\n\n<span style=\"color: #008080;\">#view first five rows of DataFrame\n<\/span>df. <span style=\"color: #3366ff;\">head<\/span> ()\n\n  method score\n0 to 71\n1 To 72\n2 To 72\n3 to 75\n4 to 78\n\n<span style=\"color: #008080;\">#define samples\n<\/span>group1 = df[df[' <span style=\"color: #ff0000;\">method<\/span> ']==' <span style=\"color: #ff0000;\">A<\/span> ']\ngroup2 = df[df[' <span style=\"color: #ff0000;\">method<\/span> ']==' <span style=\"color: #ff0000;\">B<\/span> ']\n\n<span style=\"color: #008080;\">#perform independent two sample t-test\n<\/span>ttest_rel(group1[' <span style=\"color: #ff0000;\">score<\/span> '], group2[' <span style=\"color: #ff0000;\">score<\/span> '])\n\nTtest_relResult(statistic=-6.162045351967805, pvalue=0.0001662872100210469)\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">\uacb0\uacfc\uc5d0\uc11c \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">t-\uac80\uc815 \ud1b5\uacc4: \u2013 <strong>6.1620<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">p-\uac12: <strong>0.0001<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">p-\uac12\uc774 0.05\ubcf4\ub2e4 \uc791\uae30 \ub54c\ubb38\uc5d0 \uc30d\uccb4 t-\uac80\uc815\uc758 \uadc0\ubb34 \uac00\uc124\uc744 \uae30\uac01\ud558\uace0 \ub450 \ubc29\ubc95\uc774 \uc11c\ub85c \ub2e4\ub978 \ud3c9\uade0 \uc2dc\ud5d8 \uc810\uc218\ub97c \uac00\uc838\uc628\ub2e4\ub294 \uc99d\uac70\uac00 \ucda9\ubd84\ud558\ub2e4\ub294 \uacb0\ub860\uc744 \ub0b4\ub9bd\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\ucd94\uac00 \ub9ac\uc18c\uc2a4<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 Python\uc5d0\uc11c \ub2e4\ub978 \uc77c\ubc18\uc801\uc778 \uc791\uc5c5\uc744 \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/ko\/\u110f\u1161\u110b\u1175\u110c\u1166\u1100\u1169\u11b8-\u1103\u1169\u11a8\u1105\u1175\u11b8\u1109\u1165\u11bc-\u1110\u1166\u1109\u1173\u1110\u1173-\u1111\u1161\u110b\u1175\u110a\u1165\u11ab\/\" target=\"_blank\" rel=\"noopener\">Python\uc5d0\uc11c \uce74\uc774\uc81c\uacf1 \ub3c5\ub9bd\uc131 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95<\/a><br \/> <a href=\"https:\/\/statorials.org\/ko\/\u1103\u1161\u11ab\u1107\u1161\u11bc\u1112\u1163\u11bc-\u110b\u1161\u1102\u1169\u1107\u1161-\u1111\u1161\u110b\u1175\u110a\u1165\u11ab\/\" target=\"_blank\" rel=\"noopener\">Python\uc5d0\uc11c \uc77c\uc6d0 \ubd84\uc0b0 \ubd84\uc11d\uc744 \uc218\ud589\ud558\ub294 \ubc29\ubc95<\/a><br \/> <a href=\"https:\/\/statorials.org\/ko\/\u110b\u1165\u1107\u116e\u110b\u1174-\u1107\u1175\u1103\u1161\u11ab\u1107\u1162\u11b7-\u110c\u1165\u11bc\u1112\u116a\u11a8\u1112\u1161\u11ab-\u1110\u1166\u1109\u1173\u1110\u1173\/\" target=\"_blank\" rel=\"noopener\">Python\uc5d0\uc11c Fisher\uc758 \uc815\ud655\ud55c \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ub2e4\uc74c \uc608\uc5d0\uc11c\ub294 Pandas DataFrame\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc138 \uac00\uc9c0 \ub2e4\ub978 t-\ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ub3c5\ub9bd 2-\ud45c\ubcf8 t-\uac80\uc815 Welch\uc758 2-\ud45c\ubcf8 t-\uac80\uc815 \uc30d\uc744 \uc774\ub8e8\ub294 \ud45c\ubcf8 t-\uac80\uc815 \uc608 1: Pandas\uc758 \ub3c5\ub9bd 2-\ud45c\ubcf8 t-\uac80\uc815 \ub3c5\ub9bd 2-\ud45c\ubcf8 t-\uac80\uc815\uc740 \ub450 \ubaa8\uc9d1\ub2e8\uc758 \ud3c9\uade0\uc774 \uac19\uc740\uc9c0 \uc5ec\ubd80\ub97c \ud655\uc778\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uad50\uc218\uac00 \uc11c\ub85c \ub2e4\ub978 \ub450 \uac00\uc9c0 \ud559\uc2b5 \ubc29\ubc95\uc73c\ub85c \uc778\ud574 \uc2dc\ud5d8 \ud3c9\uade0 \uc131\uc801\uc774 \ub2ec\ub77c\uc9c0\ub294\uc9c0 \uc5ec\ubd80\ub97c \uc54c\uace0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-3127","post","type-post","status-publish","format-standard","hentry","category-20"],"yoast_head":"<!-- This site is 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