<div style="margin:0px;padding:0px;border:0px;font-size:14px;line-height:inherit;font-family:helvetica,Arial,'Hiragino Sans GB','Microsoft YaHei',simsun;vertical-align:baseline;color:rgb(89,89,89);"><div class="wrap1 sclearfix" style="margin:5px auto;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-size:0px;line-height:inherit;font-family:inherit;vertical-align:baseline;width:1000px;background-color:rgb(255,255,255);"><div class="center" style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"><div class="container-main" style="margin:0px auto 0px 0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;float:left;width:700px;"><div class="article-detail" style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"><div class="article-content" style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-size:18px;line-height:1.5;vertical-align:baseline;color:rgb(93,93,93);"><div style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:1.5;vertical-align:baseline;"><p style="margin-top:1em;margin-bottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">大多数人不会花大量时间去学 matplotlib 库，仍然可以实现绘图需求，因为已经有人在 stackoverflow、github 等开源平台上提供了绝大多数画图问题的
解决方案。我们通常会使用 google 来完成绘图需求。至少我是这样。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">Matlibplot 提供了多种绘图 UI ，可进行如下
分类 ：<ul class="list-paddingleft-2" style="margin-top:1em;margin-b
ottom:0px;padding-left:30px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;list-style-position:outside;"><li style="margin-top:0px;margin-left:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;clear:both;"><p style="margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">弹出窗口和交互界面： ％matplotlib qt 和 ％matplot tk<li style="margin-top:0px;margin-left:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;clear:both;"><p style="margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">非交互式内联绘图： ％matplotlib inline<li style="margin-top:0px;margin-left:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;clear:both;"><p style="margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">交互式内联绘图： ％matplotlib notebook－－＞别用这个，它会让开关变得困难。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">2.理解 matplotlib 对象结构<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">pyplot 是
一个 matplotlib 面向对象的
函数接口。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
plt.gca()<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">它返回当前 plot() 关联的轴<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">如果不使用
plt.close() ，则会
显示出空的图形。因为在开始时使用了 inline 命令。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">axis＿id 仍然是相同的，但是当我们移动到另
一个 Notebook 块时，
plt.gca() 会发生变化。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">当我们使用 axes[i] 时，我们可以
调用任何之前的
代码块中的任何 axes 对象，但是
调用 plt.bla() ，会在每个
代码块中创建新的 axes 对象，并只
调用当前对象。因此，上面例子中，只在
plt.title() 被
调用时，才创建新
plt 对象。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">重要观察： 我们通常在当前 axis 对象上
调用 plt.bla()，这种语法使得每个
代码块中的 axis 对象都是新创建的。但是通过
调用 fig.axes[0] ，我们也可以从任何
代码块中处理之前的 axes 对象。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">来自：
https://matplotlib.org/faq/usage_faq.html<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">4.绘图的基本例子<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">如何作图的基本例子，涵盖面向对象绘图的各个方面。请仔细阅读。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">总结上面的例子：<ul class="list-paddingleft-2" style="margin-top:1em;margin-b
ottom:0px;padding-left:30px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;list-style-position:outside;"><li style="margin-top:0px;margin-left:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;clear:both;"><p style="margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">我们创建 1 行和 2 列的图形。即，1 行和 2 列中的 2 个 axes 对象。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">思路是把上面的图形考虑成为 2x4 网格。然后将多个网格分配给单个图以容纳所需的图形。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">重点：<ul class="list-paddingleft-2" style="margin-top:1em;margin-b
ottom:0px;padding-left:30px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;list-style-position:outside;"><li style="margin-top:0px;margin-left:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;clear:both;"><p style="margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">我们可以使用
subplot2grid 定制我们的绘图布局。<li style="margin-top:0px;margin-left:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;clear:both;"><p style="margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">我们可以用
plt.
figure() 创建无 axes 对象的图形，然后手动
添加 axes 对象。<li style="margin-top:0px;margin-left:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;clear:both;"><p style="margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">我们可以使用
fig.suptitle() 来设置整个图形的总
标题。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">7.线条样式和线条宽度<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">改变线条宽度、颜色或风格。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">8.基本的数据分布<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">EDA 过程中的必要操作。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">9.二维数组的等高线图和颜色网格图<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">热像图（颜色网格图）和等高线图在很多情况下都有助于可视化 2D 数据。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">10.图像的调整、
修改边缘坐标和标度<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">最后调整细节，让绘图变得更好看。<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">11.标度的限制和
自动调整<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">13.轴线<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">14.结束<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">
博客原址：
https://www.
kaggle.com/grroverpr/matplotlib-pl
otting-guide/notebook<p style="margin-top:1em;margin-b
ottom:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">也欢迎大家关注我的
博客或者公众号哦：
https://home.cnblogs.com/u/Python1234/ Python学习交流<p style="margin-top:1em;margin-b
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