{"id":2662,"date":"2023-07-21T06:47:49","date_gmt":"2023-07-21T06:47:49","guid":{"rendered":"https:\/\/statorials.org\/ko\/%e1%84%91%e1%85%a1%e1%86%ab%e1%84%83%e1%85%a1-%e1%84%91%e1%85%b5%e1%86%af%e1%84%82%e1%85%a1pandas-fillna\/"},"modified":"2023-07-21T06:47:49","modified_gmt":"2023-07-21T06:47:49","slug":"%e1%84%91%e1%85%a1%e1%86%ab%e1%84%83%e1%85%a1-%e1%84%91%e1%85%b5%e1%86%af%e1%84%82%e1%85%a1pandas-fillna","status":"publish","type":"post","link":"https:\/\/statorials.org\/ko\/%e1%84%91%e1%85%a1%e1%86%ab%e1%84%83%e1%85%a1-%e1%84%91%e1%85%b5%e1%86%af%e1%84%82%e1%85%a1pandas-fillna\/","title":{"rendered":"Pandas: nan \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\ub294 \ubc29\ubc95(\uc608\uc81c 3\uac1c)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>fillna()<\/strong> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec Pandas DataFrame\uc758 NaN \uac12\uc744 \ubc14\uafc0 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774 \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud558\ub294 \uc138 \uac00\uc9c0 \uc77c\ubc18\uc801\uc778 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\ubc29\ubc95 1: \uc5f4\uc758 NaN \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\uae30<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">col1<\/span> '] = df[' <span style=\"color: #ff0000;\">col1<\/span> ']. <span style=\"color: #3366ff;\">fillna<\/span> (df[' <span style=\"color: #ff0000;\">col1<\/span> ']. <span style=\"color: #3366ff;\">mean<\/span> ())<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>\ubc29\ubc95 2: \uc5ec\ub7ec \uc5f4\uc758 NaN \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\uae30<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[[' <span style=\"color: #ff0000;\">col1<\/span> ', ' <span style=\"color: #ff0000;\">col2<\/span> ']] = df[[' <span style=\"color: #ff0000;\">col1<\/span> ', ' <span style=\"color: #ff0000;\">col2<\/span> ']]. <span style=\"color: #3366ff;\">fillna<\/span> (df[[' <span style=\"color: #ff0000;\">col1<\/span> ',' <span style=\"color: #ff0000;\">col2<\/span> ']]. <span style=\"color: #3366ff;\">mean<\/span> ())<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>\ubc29\ubc95 3: \ubaa8\ub4e0 \uc5f4\uc758 NaN \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\uae30<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df = df. <span style=\"color: #3366ff;\">fillna<\/span> ( <span style=\"color: #3366ff;\">df.mean<\/span> ())<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \uc608\uc5d0\uc11c\ub294 \ub2e4\uc74c pandas DataFrame\uc5d0\uc11c \uc2e4\uc81c\ub85c \uac01 \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import<\/span> numpy <span style=\"color: #107d3f;\">as<\/span> np\n<span style=\"color: #107d3f;\">import<\/span> pandas <span style=\"color: #107d3f;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#create DataFrame with some NaN values<\/span>\ndf = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">rating<\/span> ': [np.nan, 85, np.nan, 88, 94, 90, 76, 75, 87, 86],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [25, np.nan, 14, 16, 27, 20, 12, 15, 14, 19],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 7, np.nan, 5, 7, 6, 9, 9, 5],\n                   ' <span style=\"color: #ff0000;\">rebounds<\/span> ': [11, 8, 10, 6, 6, 9, 6, 10, 10, 7]})\n<span style=\"color: #008080;\">\n#view DataFrame<\/span>\ndf\n\n        rating points assists rebounds\n0 NaN 25.0 5.0 11\n1 85.0 NaN 7.0 8\n2 NaN 14.0 7.0 10\n3 88.0 16.0 NaN 6\n4 94.0 27.0 5.0 6\n5 90.0 20.0 7.0 9\n6 76.0 12.0 6.0 6\n7 75.0 15.0 9.0 10\n8 87.0 14.0 9.0 10\n9 86.0 19.0 5.0 7\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>\uc608\uc2dc 1: \uc5f4\uc758 NaN \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\uae30<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 <strong>\ub4f1\uae09<\/strong> \uc5f4\uc758 NaN \uac12\uc744 <strong>\ub4f1\uae09<\/strong> \uc5f4\uc758 \ud3c9\uade0\uac12\uc73c\ub85c \ucc44\uc6b0\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#fill NaNs with column mean in 'rating' column<\/span>\n<span style=\"color: #008080;\"><span style=\"color: #000000;\">df[' <span style=\"color: #ff0000;\">rating<\/span> '] = df[' <span style=\"color: #ff0000;\">rating<\/span> ']. <span style=\"color: #3366ff;\">fillna<\/span> (df[' <span style=\"color: #ff0000;\">rating<\/span> ']. <span style=\"color: #3366ff;\">mean<\/span> ())\n\n<\/span>#view updated DataFrame<\/span>\ndf\n\n\trating points assists rebounds\n0 85.125 25.0 5.0 11\n1 85,000 NaN 7.0 8\n2 85.125 14.0 7.0 10\n3 88,000 16.0 NaN 6\n4 94,000 27.0 5.0 6\n5 90,000 20.0 7.0 9\n6 76,000 12.0 6.0 6\n7 75,000 15.0 9.0 10\n8 87,000 14.0 9.0 10\n9 86,000 19.0 5.0 7\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>\ub4f1\uae09<\/strong> \uc5f4\uc758 \ud3c9\uade0 \uac12\uc740 <strong>85.125<\/strong> \uc774\ubbc0\ub85c <strong>\ub4f1\uae09<\/strong> \uc5f4\uc758 \uac01 NaN \uac12\uc740 \ud574\ub2f9 \uac12\uc73c\ub85c \ucc44\uc6cc\uc84c\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3> <strong>\uc608\uc2dc 2:<\/strong> <span style=\"color: #000000;\"><strong>\uc5ec\ub7ec \uc5f4\uc758 NaN \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\uae30<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 <strong>\ud3c9\uc810<\/strong> \ubc0f <strong>\uc810\uc218<\/strong> \uc5f4\uc758 NaN \uac12\uc744 \ud574\ub2f9 \uc5f4 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#fill NaNs with column means in 'rating' and 'points' columns<\/span>\ndf[[' <span style=\"color: #ff0000;\">rating<\/span> ', ' <span style=\"color: #ff0000;\">points<\/span> ']] = df[[' <span style=\"color: #ff0000;\">rating<\/span> ', ' <span style=\"color: #ff0000;\">points<\/span> ']]. <span style=\"color: #3366ff;\">fillna<\/span> (df[[' <span style=\"color: #ff0000;\">rating<\/span> ',' <span style=\"color: #ff0000;\">points<\/span> ']]. <span style=\"color: #3366ff;\">mean<\/span> ())\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span>df\n\n\trating points assists rebounds\n0 85.125 25.0 5.0 11\n1 85,000 18.0 7.0 8\n2 85.125 14.0 7.0 10\n3 88,000 16.0 NaN 6\n4 94,000 27.0 5.0 6\n5 90,000 20.0 7.0 9\n6 76,000 12.0 6.0 6\n7 75,000 15.0 9.0 10\n8 87,000 14.0 9.0 10\n9 86,000 19.0 5.0 7\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>\uc131\uc801<\/strong> \ubc0f <strong>\uc810\uc218<\/strong> \uc5f4\uc758 NaN \uac12\uc740 \ud574\ub2f9 \uc5f4 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6cc\uc84c\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3> <strong>\uc608\uc2dc 3: \ubaa8\ub4e0 \uc5f4\uc758 NaN \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6c1\ub2c8\ub2e4.<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 \uac01 \uc5f4\uc758 NaN \uac12\uc744 \uc5f4 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#fill NaNs with column means in each column<\/span> \ndf = df. <span style=\"color: #3366ff;\">fillna<\/span> ( <span style=\"color: #3366ff;\">df.mean<\/span> ())\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span>df\n\n        rating points assists rebounds\n0 85.125 25.0 5.000000 11\n1 85,000 18.0 7,000000 8\n2 85.125 14.0 7.000000 10\n3 88,000 16.0 6.666667 6\n4 94,000 27.0 5,000000 6\n5 90,000 20.0 7,000000 9\n6 76,000 12.0 6,000000 6\n7 75,000 15.0 9,000000 10\n8 87,000 14.0 9,000000 10\n9 86,000 19.0 5,000000 7\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uac01 \uc5f4\uc758 NaN \uac12\uc740 \ud574\ub2f9 \uc5f4\uc758 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6cc\uc84c\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>fillna()<\/strong> \ud568\uc218\uc5d0 \ub300\ud55c \uc804\uccb4 \uc628\ub77c\uc778 \uc124\uba85\uc11c\ub294 <a href=\"https:\/\/pandas.pydata.org\/pandas-docs\/stable\/reference\/api\/pandas.DataFrame.fillna.html\" target=\"_blank\" rel=\"noopener\">\uc5ec\uae30\uc5d0\uc11c<\/a> \ucc3e\uc744 \uc218 \uc788\uc2b5\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 Pandas\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\/\u1111\u1162\u11ab\u1103\u1165\u1102\u1173\u11ab-\u1102\u116e\u1105\u1161\u11a8\u1103\u116c\u11ab-\u1100\u1161\u11b9\u110b\u1173\u11af-\u1100\u1168\u1109\u1161\u11ab\u1112\u1161\u11b8\u1102\u1175\u1103\u1161\/\" target=\"_blank\" rel=\"noopener\">\ud32c\ub354\uc5d0\uc11c \ub204\ub77d\ub41c \uac12\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95<\/a><br \/> <a href=\"https:\/\/statorials.org\/ko\/\u1111\u1162\u11ab\u1103\u1165\u1105\u1173\u11af-\u1104\u1165\u11af\u110b\u1165-\u1104\u1173\u1105\u1167\u1105\u1161\/\" target=\"_blank\" rel=\"noopener\">Pandas\uc5d0\uc11c NaN \uac12\uc774 \uc788\ub294 \ud589\uc744 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95<\/a><br \/> <a href=\"https:\/\/statorials.org\/ko\/\u1111\u1162\u11ab\u1103\u1165\u1102\u1173\u11ab-\u1100\u1161\u11b9\u110b\u1175-\u110b\u1175\u11bb\u1102\u1173\u11ab-\u1112\u1162\u11bc\u110b\u1173\u11af-\u1109\u1161\u11a8\u110c\u1166\u1112\u1161\u11b8\u1102\u1175\u1103\u1161.\/\" target=\"_blank\" rel=\"noopener\">Pandas\uc5d0\uc11c \ud2b9\uc815 \uac12\uc774 \ud3ec\ud568\ub41c \ud589\uc744 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>fillna() \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec Pandas DataFrame\uc758 NaN \uac12\uc744 \ubc14\uafc0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud558\ub294 \uc138 \uac00\uc9c0 \uc77c\ubc18\uc801\uc778 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. \ubc29\ubc95 1: \uc5f4\uc758 NaN \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\uae30 df[&#8216; col1 &#8216;] = df[&#8216; col1 &#8216;]. fillna (df[&#8216; col1 &#8216;]. mean ()) \ubc29\ubc95 2: \uc5ec\ub7ec \uc5f4\uc758 NaN \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\uae30 df[[&#8216; col1 &#8216;, &#8216; col2 &#8216;]] = df[[&#8216; [&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-2662","post","type-post","status-publish","format-standard","hentry","category-20"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pandas: NaN \uac12\uc744 \ud3c9\uade0\uc73c\ub85c \ucc44\uc6b0\ub294 \ubc29\ubc95(\uc608\uc81c 3\uac1c) - Statorials<\/title>\n<meta name=\"description\" content=\"\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 \uc5ec\ub7ec \uc608\ub97c \ud1b5\ud574 Pandas DataFrame\uc758 \ud3c9\uade0\uc73c\ub85c NaN \uac12\uc744 \ucc44\uc6b0\ub294 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