{"id":937771,"date":"2024-12-26T19:58:18","date_gmt":"2024-12-26T11:58:18","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/937771.html"},"modified":"2024-12-26T19:58:21","modified_gmt":"2024-12-26T11:58:21","slug":"python%e5%a6%82%e4%bd%95%e5%ad%a6%e4%b9%a0matplotlib","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/937771.html","title":{"rendered":"python\u5982\u4f55\u5b66\u4e60matplotlib"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25073457\/e9610bb7-ee87-4f10-8de5-5f68bf7e63f4.webp\" alt=\"python\u5982\u4f55\u5b66\u4e60matplotlib\" \/><\/p>\n<p><p> \u5b66\u4e60Matplotlib\u662f\u638c\u63e1Python\u6570\u636e\u53ef\u89c6\u5316\u7684\u5173\u952e\u6b65\u9aa4\u3002<strong>\u7406\u89e3Matplotlib\u7684\u57fa\u672c\u7ed3\u6784\u3001\u638c\u63e1\u5e38\u7528\u7ed8\u56fe\u51fd\u6570\u3001\u5b9e\u9645\u52a8\u624b\u64cd\u4f5c\u548c\u4e30\u5bcc\u6848\u4f8b\u5206\u6790<\/strong>\u662f\u5b66\u4e60Matplotlib\u7684\u6709\u6548\u65b9\u6cd5\u3002\u5176\u4e2d\uff0c<strong>\u7406\u89e3Matplotlib\u7684\u57fa\u672c\u7ed3\u6784<\/strong>\u662f\u6700\u57fa\u7840\u7684\u90e8\u5206\uff0c\u56e0\u4e3a\u5b83\u5e2e\u52a9\u4f60\u7406\u89e3\u5982\u4f55\u521b\u5efa\u548c\u7ba1\u7406\u56fe\u5f62\u5bf9\u8c61\u3002<\/p>\n<\/p>\n<p><p>Matplotlib\u662fPython\u4e2d\u6700\u5e38\u7528\u76842D\u7ed8\u56fe\u5e93\uff0c\u5176\u529f\u80fd\u5f3a\u5927\u4e14\u7075\u6d3b\uff0c\u53ef\u4ee5\u521b\u5efa\u7b80\u5355\u7684\u7ebf\u56fe\u3001\u67f1\u72b6\u56fe\u3001\u997c\u56fe\u7b49\uff0c\u4e5f\u53ef\u4ee5\u7ed8\u5236\u590d\u6742\u7684\u591a\u8f74\u56fe\u5f62\u3002\u5b66\u4e60Matplotlib\u65f6\uff0c\u9996\u5148\u8981\u638c\u63e1\u5b83\u7684\u57fa\u672c\u7ed3\u6784\uff0c\u5305\u62ecFigure\u3001Axes\u3001\u548cPlot\u7b49\u6982\u5ff5\u3002\u8fd9\u4e9b\u6982\u5ff5\u6784\u6210\u4e86Matplotlib\u7684\u56fe\u5f62\u57fa\u7840\uff0c\u53ef\u4ee5\u5e2e\u52a9\u4f60\u7406\u89e3\u5982\u4f55\u5e03\u5c40\u548c\u7ba1\u7406\u56fe\u5f62\u4e2d\u7684\u5404\u4e2a\u5143\u7d20\u3002\u63a5\u4e0b\u6765\uff0c\u901a\u8fc7\u7ec3\u4e60\u5e38\u7528\u7684\u7ed8\u56fe\u51fd\u6570\uff0c\u9010\u6b65\u63d0\u5347\u7ed8\u56fe\u6280\u5de7\u3002\u6700\u540e\uff0c\u901a\u8fc7\u5206\u6790\u4e30\u5bcc\u7684\u6848\u4f8b\uff0c\u4f60\u53ef\u4ee5\u5b66\u4f1a\u5982\u4f55\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u56fe\u5f62\u7c7b\u578b\u5e76\u8fdb\u884c\u5b9a\u5236\u5316\u8bbe\u8ba1\u3002<\/p>\n<\/p>\n<p><h2>\u4e00\u3001\u7406\u89e3MATPLOTLIB\u7684\u57fa\u672c\u7ed3\u6784<\/h2>\n<\/p>\n<p><p>Matplotlib\u7684\u57fa\u672c\u7ed3\u6784\u5305\u62ecFigure\u3001Axes\u3001\u548cPlot\u3002\u7406\u89e3\u8fd9\u4e9b\u6982\u5ff5\u662f\u5b66\u4e60Matplotlib\u7684\u57fa\u7840\u3002<\/p>\n<\/p>\n<p><h3>1. Figure\u548cAxes<\/h3>\n<\/p>\n<p><p>\u5728Matplotlib\u4e2d\uff0cFigure\u662f\u4e00\u4e2a\u6574\u4f53\u7684\u56fe\u5f62\u5bf9\u8c61\uff0c\u5b83\u76f8\u5f53\u4e8e\u4e00\u4e2a\u753b\u5e03\u3002Axes\u662fFigure\u4e2d\u7684\u4e00\u4e2a\u533a\u57df\uff0c\u7528\u4e8e\u7ed8\u5236\u6570\u636e\u56fe\u5f62\u3002\u4e00\u4e2aFigure\u53ef\u4ee5\u5305\u542b\u591a\u4e2aAxes\uff0c\u8fd9\u4e9bAxes\u53ef\u4ee5\u901a\u8fc7\u4e0d\u540c\u7684\u5e03\u5c40\u65b9\u5f0f\u6392\u5217\u5728Figure\u4e2d\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u5b50\u56fe(subplot)\u529f\u80fd\u5728\u540c\u4e00Figure\u4e2d\u521b\u5efa\u591a\u4e2aAxes\u3002<\/p>\n<\/p>\n<p><h3>2. Plot<\/h3>\n<\/p>\n<p><p>Plot\u662f\u6307\u5728Axes\u4e2d\u7ed8\u5236\u7684\u6570\u636e\u56fe\u5f62\u3002Matplotlib\u63d0\u4f9b\u4e86\u591a\u79cd\u7ed8\u56fe\u51fd\u6570\uff0c\u5982plot()\u3001scatter()\u3001bar()\u3001hist()\u7b49\uff0c\u7528\u4e8e\u7ed8\u5236\u4e0d\u540c\u7c7b\u578b\u7684\u56fe\u5f62\u3002\u6bcf\u79cd\u56fe\u5f62\u7c7b\u578b\u6709\u5176\u7279\u5b9a\u7684\u53c2\u6570\uff0c\u80fd\u591f\u5b9e\u73b0\u4e30\u5bcc\u7684\u5b9a\u5236\u5316\u6548\u679c\u3002<\/p>\n<\/p>\n<p><h3>3. \u4f7f\u7528\u793a\u4f8b<\/h3>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u521b\u5efa\u4e00\u4e2aFigure\uff0c\u5e76\u5728\u5176\u4e2d\u6dfb\u52a0\u4e00\u4e2aAxes\u7136\u540e\u7ed8\u5236\u6570\u636e\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<h2><strong>\u521b\u5efa\u4e00\u4e2aFigure\u5bf9\u8c61<\/strong><\/h2>\n<p>fig = plt.figure()<\/p>\n<h2><strong>\u5728Figure\u4e2d\u6dfb\u52a0\u4e00\u4e2aAxes<\/strong><\/h2>\n<p>ax = fig.add_subplot(111)<\/p>\n<h2><strong>\u5728Axes\u4e2d\u7ed8\u5236\u6570\u636e<\/strong><\/h2>\n<p>ax.plot([1, 2, 3, 4], [10, 20, 25, 30])<\/p>\n<h2><strong>\u663e\u793a\u56fe\u5f62<\/strong><\/h2>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>\u4e8c\u3001\u638c\u63e1\u5e38\u7528\u7ed8\u56fe\u51fd\u6570<\/h2>\n<\/p>\n<p><p>Matplotlib\u63d0\u4f9b\u4e86\u591a\u79cd\u7ed8\u56fe\u51fd\u6570\uff0c\u638c\u63e1\u8fd9\u4e9b\u51fd\u6570\u662f\u719f\u7ec3\u4f7f\u7528Matplotlib\u7684\u5173\u952e\u3002<\/p>\n<\/p>\n<p><h3>1. \u7ebf\u56fe (Line Plot)<\/h3>\n<\/p>\n<p><p>\u7ebf\u56fe\u662f\u6700\u5e38\u7528\u7684\u56fe\u5f62\u4e4b\u4e00\uff0c\u9002\u5408\u5c55\u793a\u6570\u636e\u7684\u53d8\u5316\u8d8b\u52bf\u3002\u4f7f\u7528plot()\u51fd\u6570\u53ef\u4ee5\u65b9\u4fbf\u5730\u521b\u5efa\u7ebf\u56fe\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>x = [1, 2, 3, 4, 5]<\/p>\n<p>y = [10, 15, 13, 18, 16]<\/p>\n<p>plt.plot(x, y, marker=&#39;o&#39;)<\/p>\n<p>plt.title(&#39;Simple Line Plot&#39;)<\/p>\n<p>plt.xlabel(&#39;X-axis&#39;)<\/p>\n<p>plt.ylabel(&#39;Y-axis&#39;)<\/p>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>2. \u6563\u70b9\u56fe (Scatter Plot)<\/h3>\n<\/p>\n<p><p>\u6563\u70b9\u56fe\u7528\u4e8e\u5c55\u793a\u4e24\u4e2a\u53d8\u91cf\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u9002\u5408\u5c55\u793a\u6570\u636e\u7684\u5206\u5e03\u60c5\u51b5\u3002\u4f7f\u7528scatter()\u51fd\u6570\u53ef\u4ee5\u521b\u5efa\u6563\u70b9\u56fe\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>x = [1, 2, 3, 4, 5]<\/p>\n<p>y = [10, 15, 13, 18, 16]<\/p>\n<p>plt.scatter(x, y)<\/p>\n<p>plt.title(&#39;Simple Scatter Plot&#39;)<\/p>\n<p>plt.xlabel(&#39;X-axis&#39;)<\/p>\n<p>plt.ylabel(&#39;Y-axis&#39;)<\/p>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>3. \u67f1\u72b6\u56fe (Bar Plot)<\/h3>\n<\/p>\n<p><p>\u67f1\u72b6\u56fe\u7528\u4e8e\u6bd4\u8f83\u4e0d\u540c\u7c7b\u522b\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528bar()\u51fd\u6570\u6765\u521b\u5efa\u67f1\u72b6\u56fe\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>categories = [&#39;A&#39;, &#39;B&#39;, &#39;C&#39;, &#39;D&#39;]<\/p>\n<p>values = [3, 7, 5, 6]<\/p>\n<p>plt.bar(categories, values)<\/p>\n<p>plt.title(&#39;Simple Bar Plot&#39;)<\/p>\n<p>plt.xlabel(&#39;Categories&#39;)<\/p>\n<p>plt.ylabel(&#39;Values&#39;)<\/p>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>\u4e09\u3001\u5b9e\u9645\u52a8\u624b\u64cd\u4f5c<\/h2>\n<\/p>\n<p><p>\u52a8\u624b\u7ec3\u4e60\u662f\u638c\u63e1Matplotlib\u7684\u6709\u6548\u65b9\u6cd5\u3002\u901a\u8fc7\u521b\u5efa\u4e0d\u540c\u7c7b\u578b\u7684\u56fe\u5f62\uff0c\u4f60\u53ef\u4ee5\u5de9\u56fa\u6240\u5b66\u77e5\u8bc6\uff0c\u5e76\u79ef\u7d2f\u7ecf\u9a8c\u3002<\/p>\n<\/p>\n<p><h3>1. \u521b\u5efa\u591a\u4e2a\u5b50\u56fe<\/h3>\n<\/p>\n<p><p>\u901a\u8fc7subplot()\u51fd\u6570\uff0c\u53ef\u4ee5\u5728\u540c\u4e00Figure\u4e2d\u521b\u5efa\u591a\u4e2a\u5b50\u56fe\uff0c\u5c55\u793a\u591a\u7ec4\u6570\u636e\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>x = [1, 2, 3, 4, 5]<\/p>\n<p>y1 = [10, 15, 13, 18, 16]<\/p>\n<p>y2 = [20, 25, 23, 28, 26]<\/p>\n<p>plt.figure(figsize=(10, 5))<\/p>\n<p>plt.subplot(1, 2, 1)<\/p>\n<p>plt.plot(x, y1, marker=&#39;o&#39;)<\/p>\n<p>plt.title(&#39;First Plot&#39;)<\/p>\n<p>plt.subplot(1, 2, 2)<\/p>\n<p>plt.plot(x, y2, marker=&#39;s&#39;)<\/p>\n<p>plt.title(&#39;Second Plot&#39;)<\/p>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>2. \u81ea\u5b9a\u4e49\u56fe\u5f62\u6837\u5f0f<\/h3>\n<\/p>\n<p><p>Matplotlib\u5141\u8bb8\u7528\u6237\u81ea\u5b9a\u4e49\u56fe\u5f62\u7684\u6837\u5f0f\uff0c\u5305\u62ec\u7ebf\u578b\u3001\u989c\u8272\u3001\u6807\u8bb0\u7b49\u3002\u901a\u8fc7\u53c2\u6570\u8bbe\u7f6e\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4e2a\u6027\u5316\u7684\u56fe\u5f62\u8bbe\u8ba1\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>x = [1, 2, 3, 4, 5]<\/p>\n<p>y = [10, 15, 13, 18, 16]<\/p>\n<p>plt.plot(x, y, color=&#39;red&#39;, linestyle=&#39;--&#39;, linewidth=2, marker=&#39;o&#39;, markersize=8)<\/p>\n<p>plt.title(&#39;Customized Line Plot&#39;)<\/p>\n<p>plt.xlabel(&#39;X-axis&#39;)<\/p>\n<p>plt.ylabel(&#39;Y-axis&#39;)<\/p>\n<p>plt.grid(True)<\/p>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>\u56db\u3001\u4e30\u5bcc\u6848\u4f8b\u5206\u6790<\/h2>\n<\/p>\n<p><p>\u901a\u8fc7\u5206\u6790\u4e30\u5bcc\u7684\u6848\u4f8b\uff0c\u4f60\u53ef\u4ee5\u5b66\u4f1a\u5982\u4f55\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u56fe\u5f62\u7c7b\u578b\u5e76\u8fdb\u884c\u5b9a\u5236\u5316\u8bbe\u8ba1\u3002<\/p>\n<\/p>\n<p><h3>1. \u6570\u636e\u8d8b\u52bf\u5206\u6790<\/h3>\n<\/p>\n<p><p>\u5728\u6570\u636e\u5206\u6790\u4e2d\uff0c\u8d8b\u52bf\u5206\u6790\u662f\u5e38\u89c1\u4efb\u52a1\u4e4b\u4e00\u3002\u901a\u8fc7\u7ed8\u5236\u6298\u7ebf\u56fe\uff0c\u53ef\u4ee5\u76f4\u89c2\u5730\u89c2\u5bdf\u6570\u636e\u7684\u53d8\u5316\u8d8b\u52bf\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>import numpy as np<\/p>\n<p>x = np.linspace(0, 10, 100)<\/p>\n<p>y = np.sin(x)<\/p>\n<p>plt.plot(x, y)<\/p>\n<p>plt.title(&#39;Sine Wave&#39;)<\/p>\n<p>plt.xlabel(&#39;X-axis&#39;)<\/p>\n<p>plt.ylabel(&#39;Y-axis&#39;)<\/p>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>2. \u6570\u636e\u5206\u5e03\u5c55\u793a<\/h3>\n<\/p>\n<p><p>\u76f4\u65b9\u56fe\u662f\u5c55\u793a\u6570\u636e\u5206\u5e03\u7684\u6709\u6548\u5de5\u5177\uff0c\u9002\u5408\u7528\u4e8e\u89c2\u5bdf\u6570\u636e\u7684\u96c6\u4e2d\u8d8b\u52bf\u548c\u79bb\u6563\u7a0b\u5ea6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>import numpy as np<\/p>\n<p>data = np.random.randn(1000)<\/p>\n<p>plt.hist(data, bins=30, alpha=0.7, color=&#39;blue&#39;)<\/p>\n<p>plt.title(&#39;Histogram of Random Data&#39;)<\/p>\n<p>plt.xlabel(&#39;Value&#39;)<\/p>\n<p>plt.ylabel(&#39;Frequency&#39;)<\/p>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>3. \u591a\u53d8\u91cf\u5173\u7cfb\u5c55\u793a<\/h3>\n<\/p>\n<p><p>\u6563\u70b9\u56fe\u77e9\u9635\u53ef\u4ee5\u7528\u4e8e\u5c55\u793a\u591a\u4e2a\u53d8\u91cf\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u9002\u5408\u7528\u4e8e\u591a\u53d8\u91cf\u6570\u636e\u5206\u6790\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import matplotlib.pyplot as plt<\/p>\n<p>import seaborn as sns<\/p>\n<p>import pandas as pd<\/p>\n<p>data = pd.DataFrame({<\/p>\n<p>    &#39;A&#39;: np.random.rand(100),<\/p>\n<p>    &#39;B&#39;: np.random.rand(100),<\/p>\n<p>    &#39;C&#39;: np.random.rand(100),<\/p>\n<p>    &#39;D&#39;: np.random.rand(100)<\/p>\n<p>})<\/p>\n<p>sns.p<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>rplot(data)<\/p>\n<p>plt.show()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u7406\u89e3Matplotlib\u7684\u57fa\u672c\u7ed3\u6784\u3001\u638c\u63e1\u5e38\u7528\u7ed8\u56fe\u51fd\u6570\u3001\u52a8\u624b\u64cd\u4f5c\u4ee5\u53ca\u5206\u6790\u4e30\u5bcc\u7684\u6848\u4f8b\uff0c\u4f60\u5c06\u80fd\u591f\u719f\u7ec3\u5730\u4f7f\u7528Matplotlib\u8fdb\u884c\u6570\u636e\u53ef\u89c6\u5316\uff0c\u63d0\u5347\u6570\u636e\u5206\u6790\u548c\u5c55\u793a\u7684\u80fd\u529b\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5f00\u59cb\u5b66\u4e60Matplotlib\u7684\u57fa\u7840\u77e5\u8bc6\uff1f<\/strong><br 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