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R 语言经典实例(原书第 2 版)
book

R 语言经典实例(原书第 2 版)

by J.D. Long, Paul Teetor
June 2020
Beginner to intermediate
522 pages
9h 6m
Chinese
China Machine Press
Content preview from R 语言经典实例(原书第 2 版)
488
16
16.11 插入数学公式
16.11.1 问题
需要在文档中插入数学公式。
16.11.2 解决方案
R Markdown 支持 LaTeX 数学公式表示法。在 R Markdown 中有两种生成 LaTeX 的方法。
对于简短公式,将 LaTeX 表示法放在单个美元符号($)之间。线性回归解法的公式可以
表示为 $\beta =(X^{T}X)^{-1}X^{T}{\bf{y}}$,这将导致公式
β
= (
X
T
X
)
-
1
X
T
y
对于大型公式块,将公式块嵌入双美元符号($$)之间,如下所示:
$$
\frac{\partial \mathrm C}{ \partial \mathrm t } + \frac{1}{2}\sigma^{2}
\mathrm S^{2} \frac{\partial^{2} \mathrm C}{\partial \mathrm C^2}
+ \mathrm r \mathrm S \frac{\partial \mathrm C}{\partial \mathrm S}\ =
\mathrm r \mathrm C
\label{eq:1}
$$
得到以下输出:
∂∂
∂∂
C1 C C
t2 C S
+ +=
σ
22
S rS rC
2
2
16.11.3 讨论
数学公式标记语法是源自 TeX LaTeX 标准。R Markdown 建立在该标准之上,可以在
PDFHTMLMS Word MS PowerPoint 文档中呈现数学表达式。 ...
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Publisher Resources

ISBN: 9787111656814