{"id":3576,"date":"2023-07-16T18:22:24","date_gmt":"2023-07-16T18:22:24","guid":{"rendered":"https:\/\/statorials.org\/nl\/subplots-van-pandas\/"},"modified":"2023-07-16T18:22:24","modified_gmt":"2023-07-16T18:22:24","slug":"subplots-van-pandas","status":"publish","type":"post","link":"https:\/\/statorials.org\/nl\/subplots-van-pandas\/","title":{"rendered":"Panda&#39;s: hoe u meerdere dataframes in subplots kunt plotten"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">U kunt de volgende basissyntaxis gebruiken om meerdere panda&#8217;s DataFrames in subplots te plotten:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt\n\n<span style=\"color: #008080;\">#define subplot layout\n<\/span>fig, axes = plt. <span style=\"color: #3366ff;\">subplots<\/span> (nrows= <span style=\"color: #008000;\">2<\/span> , ncols= <span style=\"color: #008000;\">2<\/span> )\n\n<span style=\"color: #008080;\">#add DataFrames to subplots\n<\/span>df1. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[0,0])\ndf2. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[0,1])\ndf3. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[1,0])\ndf4. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[1,1])\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Het volgende voorbeeld laat zien hoe u deze syntaxis in de praktijk kunt gebruiken.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Voorbeeld: meerdere panda-dataframes in subplots plotten<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Laten we zeggen dat we vier Panda DataFrames hebben die informatie bevatten over verkopen en retouren bij vier verschillende winkels:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#create four DataFrames\n<\/span>df1 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">sales<\/span> ': [2, 5, 5, 7, 9, 13, 15, 17, 22, 24],\n                    ' <span style=\"color: #ff0000;\">returns<\/span> ': [1, 2, 3, 4, 5, 6, 7, 8, 7, 5]})\n\ndf2 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">sales<\/span> ': [2, 5, 11, 18, 15, 15, 14, 9, 6, 7],\n                    ' <span style=\"color: #ff0000;\">returns<\/span> ': [1, 2, 0, 2, 2, 4, 5, 4, 2, 1]})\n\ndf3 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">sales<\/span> ': [6, 8, 8, 7, 8, 9, 10, 7, 8, 12],\n                    ' <span style=\"color: #ff0000;\">returns<\/span> ': [1,0, 1, 1, 1, 2, 3, 2, 1, 3]})\n\ndf4 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">sales<\/span> ': [10, 7, 7, 6, 7, 6, 4, 3, 3, 2],\n                    ' <span style=\"color: #ff0000;\">returns<\/span> ': [4, 4, 3, 3, 2, 3, 2, 1, 1, 0]})<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">We kunnen de volgende syntaxis gebruiken om elk van deze DataFrames in een subplot te plotten met een lay-out van 2 rijen en 2 kolommen:<\/span><\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt\n\n<span style=\"color: #008080;\">#define subplot layout\n<\/span>fig, axes = plt. <span style=\"color: #3366ff;\">subplots<\/span> (nrows= <span style=\"color: #008000;\">2<\/span> , ncols= <span style=\"color: #008000;\">2<\/span> )\n\n<span style=\"color: #008080;\">#add DataFrames to subplots\n<\/span>df1. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[0,0])\ndf2. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[0,1])\ndf3. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[1,0])\ndf4. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[1,1])<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-29532\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/sous1.jpg\" alt=\"panda-subplots\" width=\"669\" height=\"449\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Elk van de vier DataFrames wordt weergegeven in een subplot.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Merk op dat we het argument <strong>assen<\/strong> hebben gebruikt om aan te geven waar elk DataFrame moet worden geplaatst.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Het DataFrame met de naam <strong>df1<\/strong> werd bijvoorbeeld op de positie geplaatst met een rijindexwaarde van <strong>0<\/strong> en een kolomindexwaarde van <strong>0<\/strong> (bijvoorbeeld de subplot in de linkerbovenhoek).<\/span><\/p>\n<p> <span style=\"color: #000000;\">Merk ook op dat u de lay-out van de subplots kunt wijzigen met behulp van de argumenten <strong>nrows<\/strong> en <strong>ncols<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">De volgende code laat bijvoorbeeld zien hoe u subplots in vier rijen en \u00e9\u00e9n kolom kunt indelen:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt\n\n<span style=\"color: #008080;\">#define subplot layout\n<\/span>fig, axes = plt. <span style=\"color: #3366ff;\">subplots<\/span> (nrows= <span style=\"color: #008000;\">4<\/span> , ncols= <span style=\"color: #008000;\">1<\/span> )\n\n<span style=\"color: #008080;\">#add DataFrames to subplots\n<\/span>df1. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[0])\ndf2. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[1])\ndf3. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[2])\ndf4. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[3])<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-29533 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/sous2.jpg\" alt=\"\" width=\"555\" height=\"480\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Subplots zijn nu gerangschikt in een lay-out met vier rijen en \u00e9\u00e9n kolom.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Houd er rekening mee dat als u wilt dat de subplots dezelfde schaal hebben op de y- en x-as, u de argumenten <strong>sharey<\/strong> en <strong>sharex<\/strong> kunt gebruiken.<\/span><\/p>\n<p> <span style=\"color: #000000;\">De volgende code laat bijvoorbeeld zien hoe u het <strong>sharey-<\/strong> argument kunt gebruiken om te forceren dat alle subplots dezelfde schaal op de Y-as hebben:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt\n\n<span style=\"color: #008080;\">#define subplot layout, force subplots to have same y-axis scale\n<\/span>fig, axes = plt. <span style=\"color: #3366ff;\">subplots<\/span> (nrows= <span style=\"color: #008000;\">4<\/span> , ncols= <span style=\"color: #008000;\">1<\/span> , sharey= <span style=\"color: #008000;\">True<\/span> )\n\n<span style=\"color: #008080;\">#add DataFrames to subplots\n<\/span>df1. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[0])\ndf2. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[1])\ndf3. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[2])\ndf4. <span style=\"color: #3366ff;\">plot<\/span> (ax=axes[3])<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-29534 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/sous3.jpg\" alt=\"\" width=\"558\" height=\"470\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Merk op dat de Y-as van elk subplot nu varieert van 0 tot 20.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Aanvullende bronnen<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">In de volgende tutorials wordt uitgelegd hoe u andere veelvoorkomende bewerkingen in panda&#8217;s kunt uitvoeren:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/nl\/panda-cirkeldiagram\/\" target=\"_blank\" rel=\"noopener\">Hoe u een cirkeldiagram maakt vanuit Panda&#8217;s DataFrame<\/a><br \/> <a href=\"https:\/\/statorials.org\/nl\/panda-puntenwolk\/\" target=\"_blank\" rel=\"noopener\">Hoe u een puntenwolk maakt vanuit het Pandas DataFrame<\/a><br \/> <a href=\"https:\/\/statorials.org\/nl\/panda-histogram\/\" target=\"_blank\" rel=\"noopener\">Hoe u een histogram maakt van Pandas DataFrame<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>U kunt de volgende basissyntaxis gebruiken om meerdere panda&#8217;s DataFrames in subplots te plotten: import matplotlib. pyplot as plt #define subplot layout fig, axes = plt. subplots (nrows= 2 , ncols= 2 ) #add DataFrames to subplots df1. plot (ax=axes[0,0]) df2. plot (ax=axes[0,1]) df3. plot (ax=axes[1,0]) df4. plot (ax=axes[1,1]) Het volgende voorbeeld laat zien hoe [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-3576","post","type-post","status-publish","format-standard","hentry","category-gids"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Panda&#039;s: meerdere DataFrames in subplots 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