{"id":3276,"date":"2023-07-18T08:09:04","date_gmt":"2023-07-18T08:09:04","guid":{"rendered":"https:\/\/statorials.org\/ko\/na-nan-%e1%84%80%e1%85%a1%e1%86%b9%e1%84%8b%e1%85%b3%e1%86%af-%e1%84%91%e1%85%a9%e1%84%92%e1%85%a1%e1%86%b7%e1%84%92%e1%85%a1%e1%84%82%e1%85%b3%e1%86%ab-%e1%84%87%e1%85%ae%e1%84%8b%e1%85%ae%e1%86%af\/"},"modified":"2023-07-18T08:09:04","modified_gmt":"2023-07-18T08:09:04","slug":"na-nan-%e1%84%80%e1%85%a1%e1%86%b9%e1%84%8b%e1%85%b3%e1%86%af-%e1%84%91%e1%85%a9%e1%84%92%e1%85%a1%e1%86%b7%e1%84%92%e1%85%a1%e1%84%82%e1%85%b3%e1%86%ab-%e1%84%87%e1%85%ae%e1%84%8b%e1%85%ae%e1%86%af","status":"publish","type":"post","link":"https:\/\/statorials.org\/ko\/na-nan-%e1%84%80%e1%85%a1%e1%86%b9%e1%84%8b%e1%85%b3%e1%86%af-%e1%84%91%e1%85%a9%e1%84%92%e1%85%a1%e1%86%b7%e1%84%92%e1%85%a1%e1%84%82%e1%85%b3%e1%86%ab-%e1%84%87%e1%85%ae%e1%84%8b%e1%85%ae%e1%86%af\/","title":{"rendered":"\ud574\uacb0 \ubc29\ubc95: valueerror: na\/nan \uac12\uc744 \ud3ec\ud568\ud558\ub294 \ubd80\uc6b8\uc774 \uc544\ub2cc \ubc30\uc5f4\ub85c \ub9c8\uc2a4\ud06c\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4."},"content":{"rendered":"

<\/p>\n

\n

pandas\ub97c \uc0ac\uc6a9\ud560 \ub54c \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \uc624\ub958\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n

 ValueError<\/span> : Cannot mask with non-boolean array containing NA \/ NaN values\n<\/strong><\/span><\/pre>\n
 \uc774 \uc624\ub958\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud2b9\uc815 \ubb38\uc790\uc5f4\uc774 \ud3ec\ud568\ub41c pandas DataFrame\uc758 \ud589\uc744 \ucc3e\uc73c\ub824\uace0 \ud560 \ub54c \ubc1c\uc0dd\ud558\uc9c0\ub9cc \uac80\uc0c9 \uc911\uc778 \uc5f4\uc5d0 NaN \uac12\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n
 \ub2e4\uc74c \uc608\uc5d0\uc11c\ub294 \uc2e4\uc81c\ub85c \uc774 \uc624\ub958\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n
 \uc624\ub958\ub97c \uc7ac\ud604\ud558\ub294 \ubc29\ubc95<\/strong><\/h2>\n
 \ub2e4\uc74c\uacfc \uac19\uc740 \ud32c\ub354 DataFrame\uc774 \uc788\ub2e4\uace0 \uac00\uc815\ud569\ub2c8\ub2e4.<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\nimport<\/span> numpy as<\/span> np\n\n#createDataFrame\n<\/span>df = pd. DataFrame<\/span> ({' team<\/span> ': ['A', 'A', 'A', 'B', 'B'],\n                   ' position<\/span> ': ['Guard', 'Guard', np. nan<\/span> , 'Guard', 'Forward'],\n                   ' points<\/span> ': [22, 28, 14, 13, 19]})\n\n#view DataFrame\n<\/span>print<\/span> (df)\n\n  team position points\n0 A Guard 22\n1 A Guard 28\n2 A NaN 14\n3 B Guard 13\n4 B Forward 19<\/strong><\/span><\/pre>\n
 \uc774\uc81c \uc704\uce58<\/strong> \uc5f4\uc5d0 “Guard”\ub77c\ub294 \ubb38\uc790\uc5f4\uc774 \ud3ec\ud568\ub41c DataFrame\uc758 \ubaa8\ub4e0 \ud589\uc5d0 \uc561\uc138\uc2a4\ud558\ub824\uace0 \ud55c\ub2e4\uace0 \uac00\uc815\ud569\ub2c8\ub2e4.<\/span><\/p>\n
 #access all rows where position column contains 'Guard'\n<\/span>df[df[' position<\/span> ']. str<\/span> . contains<\/span> (' Guard<\/span> ')]\n\nValueError<\/span> : Cannot mask with non-boolean array containing NA \/ NaN values\n<\/strong><\/span><\/pre>\n
 \uc704\uce58<\/strong> \uc5f4\uc5d0 NaN \uac12\uc774 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc624\ub958\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/span><\/p>\n
 \uc624\ub958\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95<\/strong><\/h2>\n
 \uc774 \uc624\ub958\ub97c \ubc29\uc9c0\ud558\ub824\uba74 str.contains()<\/strong> \ud568\uc218\uc5d0\uc11c na=False<\/strong> \uc778\uc218\ub97c \uc0ac\uc6a9\ud558\uba74 \ub429\ub2c8\ub2e4.<\/span><\/p>\n
 #access all rows where position column contains 'Guard', ignore NaN\n<\/span>df[df[' position<\/span> ']. str<\/span> . contains<\/span> (' Guard<\/span> ', na= False<\/span> )]\n\n        team position points\n0 A Guard 22\n1 A Guard 28\n3 B Guard 13\n<\/strong><\/span><\/pre>\n
 \uc774\ubc88\uc5d0\ub294 \uc704\uce58<\/strong> \uc5f4\uc5d0 “Guard”\uac00 \ud3ec\ud568\ub41c \ubaa8\ub4e0 \ud589\uc5d0 \uc624\ub958 \uc5c6\uc774 \uc561\uc138\uc2a4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n
 \uc774 \uc624\ub958\ub97c \ubc29\uc9c0\ud558\ub294 \ub610 \ub2e4\ub978 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 .fillna(False)\ub97c<\/strong> \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/span><\/span><\/p>\n
 #access all rows where position column contains 'Guard', ignore NaN\n<\/span>df[df[' position<\/span> ']. str<\/span> . contains<\/span> (' Guard<\/span> '). fillna<\/span> ( False<\/span> )]\n\n        team position points\n0 A Guard 22\n1 A Guard 28\n3 B Guard 13<\/strong><\/span><\/pre>\n
 \ub2e4\uc2dc \ud55c \ubc88 \uc624\ub958 \uc5c6\uc774 \uc704\uce58<\/strong> \uc5f4\uc5d0 “Guard”\uac00 \ud3ec\ud568\ub41c \ubaa8\ub4e0 \ud589\uc5d0 \uc561\uc138\uc2a4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n
 \ucd94\uac00 \ub9ac\uc18c\uc2a4<\/strong><\/span><\/h2>\n
 \ub2e4\uc74c \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 Python\uc758 \ub2e4\ub978 \uc77c\ubc18\uc801\uc778 \uc624\ub958\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/span><\/p>\n
 Pandas\uc5d0\uc11c KeyError\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95<\/a>
 \uc218\uc815 \ubc29\ubc95: ValueError: float NaN\uc744 int\ub85c \ubcc0\ud658\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/a>
 \ud574\uacb0 \ubc29\ubc95: ValueError: \ud53c\uc5f0\uc0b0\uc790\ub97c \ubaa8\uc591\uacfc \ud568\uaed8 \ube0c\ub85c\ub4dc\uce90\uc2a4\ud2b8\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
pandas\ub97c \uc0ac\uc6a9\ud560 \ub54c \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \uc624\ub958\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. ValueError : Cannot mask with non-boolean array containing NA \/ NaN values \uc774 \uc624\ub958\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud2b9\uc815 \ubb38\uc790\uc5f4\uc774 \ud3ec\ud568\ub41c pandas DataFrame\uc758 \ud589\uc744 \ucc3e\uc73c\ub824\uace0 \ud560 \ub54c \ubc1c\uc0dd\ud558\uc9c0\ub9cc \uac80\uc0c9 \uc911\uc778 \uc5f4\uc5d0 NaN \uac12\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \uc608\uc5d0\uc11c\ub294 \uc2e4\uc81c\ub85c \uc774 \uc624\ub958\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc624\ub958\ub97c \uc7ac\ud604\ud558\ub294 \ubc29\ubc95 \ub2e4\uc74c\uacfc \uac19\uc740 \ud32c\ub354 DataFrame\uc774 […]<\/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-3276","post","type-post","status-publish","format-standard","hentry","category-20"],"yoast_head":"\n\uc218\uc815 \ubc29\ubc95: ValueError: NA\/NaN \uac12\uc744 \ud3ec\ud568\ud558\ub294 \ubd80\uc6b8\uc774 \uc544\ub2cc \ubc30\uc5f4\ub85c \ub9c8\uc2a4\ud06c\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. - \ud1b5\uacc4<\/title>\n<meta name=\"description\" content=\"\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 pandas\uc5d0\uc11c \ub2e4\uc74c \uc624\ub958\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. ValueError: NA\/NaN \uac12\uc744 \ud3ec\ud568\ud558\ub294 \ubd80\uc6b8\uc774 \uc544\ub2cc \ubc30\uc5f4\ub85c \ub9c8\uc2a4\ud06c\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/ko\/na-nan-\u1100\u1161\u11b9\u110b\u1173\u11af-\u1111\u1169\u1112\u1161\u11b7\u1112\u1161\u1102\u1173\u11ab-\u1107\u116e\u110b\u116e\u11af\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\uc218\uc815 \ubc29\ubc95: ValueError: NA\/NaN \uac12\uc744 \ud3ec\ud568\ud558\ub294 \ubd80\uc6b8\uc774 \uc544\ub2cc \ubc30\uc5f4\ub85c \ub9c8\uc2a4\ud06c\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. - \ud1b5\uacc4\" \/>\n<meta property=\"og:description\" content=\"\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 pandas\uc5d0\uc11c \ub2e4\uc74c \uc624\ub958\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. ValueError: NA\/NaN \uac12\uc744 \ud3ec\ud568\ud558\ub294 \ubd80\uc6b8\uc774 \uc544\ub2cc \ubc30\uc5f4\ub85c \ub9c8\uc2a4\ud06c\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/ko\/na-nan-\u1100\u1161\u11b9\u110b\u1173\u11af-\u1111\u1169\u1112\u1161\u11b7\u1112\u1161\u1102\u1173\u11ab-\u1107\u116e\u110b\u116e\u11af\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-18T08:09:04+00:00\" \/>\n<meta name=\"author\" content=\"\ubca4\uc790\ubbfc \uc564\ub354\uc2a8\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\ubca4\uc790\ubbfc \uc564\ub354\uc2a8\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/ko\/na-nan-%e1%84%80%e1%85%a1%e1%86%b9%e1%84%8b%e1%85%b3%e1%86%af-%e1%84%91%e1%85%a9%e1%84%92%e1%85%a1%e1%86%b7%e1%84%92%e1%85%a1%e1%84%82%e1%85%b3%e1%86%ab-%e1%84%87%e1%85%ae%e1%84%8b%e1%85%ae%e1%86%af\/\",\"url\":\"https:\/\/statorials.org\/ko\/na-nan-%e1%84%80%e1%85%a1%e1%86%b9%e1%84%8b%e1%85%b3%e1%86%af-%e1%84%91%e1%85%a9%e1%84%92%e1%85%a1%e1%86%b7%e1%84%92%e1%85%a1%e1%84%82%e1%85%b3%e1%86%ab-%e1%84%87%e1%85%ae%e1%84%8b%e1%85%ae%e1%86%af\/\",\"name\":\"\uc218\uc815 \ubc29\ubc95: ValueError: NA\/NaN \uac12\uc744 \ud3ec\ud568\ud558\ub294 \ubd80\uc6b8\uc774 \uc544\ub2cc \ubc30\uc5f4\ub85c \ub9c8\uc2a4\ud06c\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. - \ud1b5\uacc4\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/ko\/#website\"},\"datePublished\":\"2023-07-18T08:09:04+00:00\",\"dateModified\":\"2023-07-18T08:09:04+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/ko\/#\/schema\/person\/600556789b7d79cbaa9d9f0c721b74f4\"},\"description\":\"\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 pandas\uc5d0\uc11c \ub2e4\uc74c \uc624\ub958\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. 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