字符串变量作为pyplot中的乳胶 [英] string variable as latex in pyplot

问题描述

有可能在pyplot图中具有Latex格式，即标题，标签等.

It is possible to have Latex formatting in pyplot diagrams, i.e. for title, labels etc.

#some dummy code
plt.plot(x,y,label = r"$a < \gamma$")

它是通过在实际的乳胶字符串之前添加一个r来生成的.现在，pyplot接受变量作为字符串的输入，即

It is generated by adding an r before the actual latex string. Now, pyplot accepts variables as inputs for strings, i.e.

#some dummy code
foo = "some fancy label"
plt.plot(x,y, label = foo)

我想将这两个世界结合起来，但是我在 SO 上找到的唯一答案是 Julia.

I would like to combine the two worlds, however the only answer I found on SO is for Julia.

我该如何进行这项工作?

How can I make this work?

推荐答案

示例如下:

foo = r"some fancy label and $a < \gamma$"
plt.plot(x,y, label = foo)

添加 r 的目的是使字符串成为

The point of adding an r is that it makes the string a raw string (literal). This is necessary because \ is no valid string literal. However, \ can be escaped by another \, such that the following is valid as well

foo = "some fancy label and $a < \\gamma$"
plt.plot(x,y, label = foo)

请注意，字符串前面没有 r .

Note that there is no r in front of the string.

还请注意，美元符号 $ 实际上不是在调用乳胶，而是所谓的 MathText .为了获得真实的乳胶渲染，您需要安装可运行的乳胶并调用 usetex = True 参数.详细信息此处.

Also note that the dollar signs $ are not actually invoking latex but what is called MathText. In order to get true latex rendering you would need to have a working latex installation and invoke the usetex=True parameter; details here.

这篇关于字符串变量作为pyplot中的乳胶的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！