{"id":1938,"date":"2023-07-24T09:25:12","date_gmt":"2023-07-24T09:25:12","guid":{"rendered":"https:\/\/statorials.org\/cn\/matplotlib-%e7%82%b9%e4%ba%91%e5%9b%be%e4%be%8b\/"},"modified":"2023-07-24T09:25:12","modified_gmt":"2023-07-24T09:25:12","slug":"matplotlib-%e7%82%b9%e4%ba%91%e5%9b%be%e4%be%8b","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/matplotlib-%e7%82%b9%e4%ba%91%e5%9b%be%e4%be%8b\/","title":{"rendered":"\u5982\u4f55\u5728 matplotlib \u4e2d\u5411\u6563\u70b9\u56fe\u6dfb\u52a0\u56fe\u4f8b"},"content":{"rendered":"

<\/p>\n

\n

\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u5c06\u56fe\u4f8b\u6dfb\u52a0\u5230 Matplotlib \u4e2d\u7684\u6563\u70b9\u56fe\uff1a<\/span><\/p>\n

 import<\/span> matplotlib. pyplot<\/span> as<\/span> plt\nfrom<\/span> matplotlib. colors<\/span> import<\/span> ListedColormap\n\n#define values, classes, and colors to map \n<\/span>values = [0, 0, 1, 2, 2, 2]\nclasses = [' A<\/span> ', ' B<\/span> ', ' C<\/span> ']\ncolors = ListedColormap([' red<\/span> ', ' blue<\/span> ', ' purple<\/span> '])\n\n#create scatterplot\n<\/span>scatter = plt. scatter<\/span> (x, y, c=values, cmap=colors)\n\n#add legend\n<\/span>plt. legend<\/span> ( *<\/span> scatter.legend_elements<\/span> ())\n<\/strong><\/pre>\n
\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728\u5b9e\u8df5\u4e2d\u4f7f\u7528\u6b64\u8bed\u6cd5\u3002<\/span><\/p>\n
\u793a\u4f8b 1\uff1a\u5e26\u6709\u503c\u7684\u6563\u70b9\u56fe\u56fe\u4f8b<\/strong><\/span><\/h3>\n
\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u5982\u4f55\u521b\u5efa\u56fe\u4f8b\u663e\u793a\u503c\u7684\u6563\u70b9\u56fe\uff1a<\/span> <\/p>\n
 import<\/span> matplotlib. pyplot<\/span> as<\/span> plt\nfrom<\/span> matplotlib. colors<\/span> import<\/span> ListedColormap\n\n#define data\n<\/span>x = [3, 4, 4, 6, 8, 9]\ny = [12, 14, 17, 16, 11, 13]\n\n#define values, classes, and colors to map \n<\/span>values = [0, 0, 1, 2, 2, 2]\nclasses = [' A<\/span> ', ' B<\/span> ', ' C<\/span> ']\ncolors = ListedColormap([' red<\/span> ', ' blue<\/span> ', ' purple<\/span> '])\n\n#create scatterplot\n<\/span>scatter = plt. scatter<\/span> (x, y, c=values, cmap=colors)\n\n#add legend with values\n<\/span>plt. legend<\/span> ( *<\/span> scatter.legend_elements<\/span> ())<\/strong> <\/pre>\n
\"\"<\/p>\n
\u793a\u4f8b 2\uff1a\u5e26\u6709\u7c7b\u7684\u6563\u70b9\u56fe\u56fe\u4f8b<\/strong><\/span><\/h3>\n
\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u5982\u4f55\u521b\u5efa\u6563\u70b9\u56fe\uff0c\u5176\u4e2d\u56fe\u4f8b\u663e\u793a\u7c7b\u540d\u79f0\uff1a<\/span> <\/p>\n
 import<\/span> matplotlib. pyplot<\/span> as<\/span> plt\nfrom<\/span> matplotlib. colors<\/span> import<\/span> ListedColormap\n\n#define data\n<\/span>x = [3, 4, 4, 6, 8, 9]\ny = [12, 14, 17, 16, 11, 13]\n\n#define values, classes, and colors to map \n<\/span>values = [0, 0, 1, 2, 2, 2]\nclasses = [' A<\/span> ', ' B<\/span> ', ' C<\/span> ']\ncolors = ListedColormap([' red<\/span> ', ' blue<\/span> ', ' purple<\/span> '])\n\n#create scatterplot\n<\/span>scatter = plt. scatter<\/span> (x, y, c=values, cmap=colors)\n\n#add legend with class names\n<\/span>plt. legend<\/span> (handles=scatter. legend_elements<\/span> ()[ 0<\/span> ], labels=classes)\n<\/strong><\/pre>\n
\"\"<\/p>\n
\u8bf7\u6ce8\u610f\uff0c\u6b64\u56fe\u4f8b\u663e\u793a\u6211\u4eec\u6307\u5b9a\u7684\u7c7b\u540d\uff08A\u3001B\u3001C\uff09\uff0c\u800c\u4e0d\u662f\u6211\u4eec\u6307\u5b9a\u7684\u503c\uff080\u30011\u30012\uff09\u3002<\/span><\/p>\n
\u5176\u4ed6\u8d44\u6e90<\/strong><\/span><\/h3>\n
 \u5982\u4f55\u589e\u52a0 Matplotlib \u4e2d\u7684\u7ed8\u56fe\u5927\u5c0f<\/a>
\u5982\u4f55\u5728 Matplotlib \u4e2d\u8c03\u6574\u6807\u9898\u4f4d\u7f6e<\/a>
\u5982\u4f55\u5728 Matplotlib \u4e2d\u8bbe\u7f6e\u8f74\u8303\u56f4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u5c06\u56fe\u4f8b\u6dfb\u52a0\u5230 Matplotlib \u4e2d\u7684\u6563\u70b9\u56fe\uff1a import matplotlib. py […]<\/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-1938","post","type-post","status-publish","format-standard","hentry","category-11"],"yoast_head":"\n\u5982\u4f55\u5728 Matplotlib \u4e2d\u5411\u6563\u70b9\u56fe\u6dfb\u52a0\u56fe\u4f8b \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u5728 Matplotlib \u4e2d\u5411\u6563\u70b9\u56fe\u6dfb\u52a0\u56fe\u4f8b\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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