小编Ada*_*ter的帖子

有没有一种简单的方法来模拟LaTeX中使用HTML和CSS cases提供的环境amsmath？

例如,在LaTeX中,可以写:

\documentclass{article}

\usepackage{amsmath}

\begin{document}

\[
\text{2014-01-05} \quad
\begin{cases} \text{Lorem ipsum \ldots} \\
\text{Lorem ipsum \ldots} \\
\text{Lorem ipsum \ldots} \\
\end{cases}
\]

\end{document}

产生:

我希望能够在HTML和CSS中做同样的事情.

所以,到目前为止,我已经尝试过了(见上JSFiddle):

HTML:

<div id="blog-post-date">
2013-07-01
</div>

<div id="blog-post-brace">
<span style="font-size:700%">{</span>
</div>

<div id="blog-post-content">

    <div id="blog-floater"></div>

    <div id="blog-post-content-child">

        <p>Title: <a href="http://stackoverflow.com"> Blog about stackoverflow with a really, really, really, really, excessively long title in order to demonstrate a problem </a></p>

        <p>Categories: website, help</p>

        <p>Tags: HTML, CSS</p>

    </div>

</div>

和CSS: …

例如,如果我使用ggplot2's stat_summary()来制作3加仑,4加仑和5加速汽车的平均每加仑英里数的条形图,我该如何用mpg的平均值标记每个条形图？

library(ggplot2)
CarPlot <- ggplot() +
  stat_summary(data= mtcars,
               aes(x = factor(gear),
                   y = mpg,
                   fill = factor(gear)
                   ),
               fun.y="mean",
               geom="bar"
               )
CarPlot

我知道你可以正常使用geom_text(),但我无法弄清楚要做什么才能获得平均值stat_summary().

在 Excel 中，数据的组织方式如下：

                                              Bare NP                   Singular-Marked NP               Plural-Marked NP   
                                    BrP Speakers    AmE Speakers    BrP Speakers    AmE Speakers    BrP Speakers AmE Speakers
Plural Interpretation               0.005747126 0.006896552         0.194117647 0.124567474         0.872093023 0.985815603
Plural & Singular Interpretation    0.649425287 0.910344828         0.029411765 0.051903114         0.127906977 0.014184397
Singular Interpretation             0.344827586 0.082758621         0.776470588 0.823529412         0           0

我能够生成如下所示的堆叠条形图：

是否有一种简单的方法可以使用 重现将 x 轴划分为单独条件（即“裸 NP”、“单数标记 NP”和“复数标记 NP”）的方式R？

目前我能想到的只有这个：

pluralInterp <- c(0.005747126,0.006896552,0.194117647,0.124567474,0.872093023,0.985815603)

pluralAndSingInterp <- c(0.649425287,0.910344828,0.029411765,0.051903114,0.127906977,0.014184397)

singInterp <- c(0.344827586,0.082758621,0.776470588,0.823529412,0,0)

a  <- rbind(pluralInterp,pluralAndSingInterp,singInterp)

colnames(a) <- c("Bare NP ~ BrP Speakers",
                 "Bare …

为什么以下R Markdown最小（非）工作示例无法编译为PDF？

---
header-includes:
- \usepackage{fancyhdr}
- \pagestyle{fancy}
- \lhead{}
- \chead{}
- \rhead{The performance of new graduates}
- \lfoot{From: K. Grant}
- \cfoot{To: Dean A. Smith}
output:
  pdf_document:
    keep_tex: yes
    latex_engine: xelatex
---

# Test

特别是，有问题的转换发生在-\lfoot{From: K. Grant}和-\cfoot{To: Dean A. Smith}，如输出.tex文件所示：

---
header-includes:
- \usepackage{fancyhdr}
- \pagestyle{fancy}
- \lhead{}
- \chead{}
- \rhead{The performance of new graduates}
- \lfoot{From: K. Grant}
- \cfoot{To: Dean A. Smith}
output:
  pdf_document:
    keep_tex: yes
    latex_engine: xelatex
--- …

请考虑以下示例.

mkdir pgp-git-test
cd pgp-git-test
git init
touch a.txt
git add a.txt
git commit -m "Add a.txt" -S
touch b.txt
git add b.txt
git commit -m "Add b.txt" -S
git filter-branch --index-filter 'git rm --cached --ignore-unmatch a.txt' --prune-empty HEAD
git log --oneline --decorate
b4efdf0 (HEAD -> master)  iQIcBAABCgAGBQJVrvqHAAoJEGuo23L9/VuyntUQAIBD0g03rTKRkOd9eM4bJgUV  jJezu7R4J0U+zVLrsrSl8oTrYrKPL5QAIqqaB9978qSx5WsmCJj8EfIZ2lwFj7kI  sWWcqjAWcRjWrte/v7ehUyTpJF6h5mWJPbC31BueZ3qlVvvfI03NbMUGocm1VOvE  KZakYkbhrA4ucA0K0YH9RKFo59cLS48SB7DQK4dBfdJSOnBC0Ga9pgBp8wnF2TQG  znRA3MnGRPJMRxZsend5P6gyeGl3wo0J/yk8HDFZXudTRS3SLB+um3NcTXRLIE9Z  Whud2oERKE9CuHU8Y64prbKKA27vWgaVQOC44ujaCqbYXuq+4Ozs34PBlf3CjJqW  19GdVBlqFfiyCPULwyxoPWkRk2kPQyEejt+sJIXG9QgefvoqFF5oLW/YA7AOrDSE  luLbC8uxmTARCWGZVGINL7NmPmEVFDZVj9EyYOjxE/+0wm4cGNBHrL6/JMkVOgpT  pWlgZWR3rX4IjzYtN6DMqKYNWVkVawZQUPh5n5jteuripWtnu5IG8vvvK2mtlkQ3  1OZIdQNAv0HYhBO0vHlV0o2TlVL5x9WfPFn+1XJepJUcoN3MdzXLxN27njdW5Bti  olEqyHrTRxYJNZgSwpQ7WITheIFDqpdcoUV2h4hNjGcXfc0DfaevtCA/oQir+3L4  JlFB35Le9Yby9htVhlu2  =RJi9  -----END PGP SIGNATURE-----
9f82e63  iQIcBAABCgAGBQJVrvp7AAoJEGuo23L9/Vuy/3QP/itaNGwRtlPB4uajGGHMUPxn  gnzd5k5gaWvWlE0Cn/v+CFqE9zVfNiqfsEwJ5YUycUNtEuF9rsiqeQWaWdHWquqr  kOEwRx/9mliK7iC2MZBn/biY5wBE2VcO2m281SnCKxslCjHJxlBo9rglq1t0wybT  CX7C7ScKAtYkos4c1vL0D5Bam2panVXs/KT/YDgWZT9kTg+lEd7NaIwxxNn7HNs7  sOvI2zLyca2FepahF99ZRGg1kKXarVh9nW4mZ1GfeAUuCNSwgwBv+NO3wFC1Blcp  uzKAo1F/cN0rAOr0bMdIZ0qJEVMBBpaqodqRqCOcmYTm5CoKFmcNJvixPl+hYsQx  mPFxM0yVsjlLAnIckNqos/T3i6T8zrb5X4g5ZwuQZzzNKy1xx809v9erb2HHK+d1  +MqdzwEcMyGqfyhz9s1BGrwpBk5CAg2MXbtPpoMTBIG7hmke1al89jvgBiuir06E  kEN6jl/2yAfsj7k5ryjFQNSPJ+HYEyvYBCx3u+xXdA5IBH6CU2S44RqugwztbVKz  /Viel4wIHJ8UCA85ZiprRWJE+nz1RXKlBZc/37W4vcSUSTELXEkhaybOM/eBKACR  sDHOKq5MG9VmZXcu0Zs0cyEvuqljSnZggbDasXHj68b86rB5VRGIO10ad1xKPnFZ  PTUmKKtz1NZkMmjIX4vR  =Mnxi  -----END PGP SIGNATURE----- …

CSS counter-reset属性允许自动编号HTML元素(例如此处).除了链接中演示的用法之外,当<li>元素不是全部出现在同一<ol>标记内时,此属性对于在网页上创建连续有序列表也很有用.

但是,当<p>标签内部有<li>标签时,会强制文本显示在实际计数器后面的一行上.有没有办法在仍然使用<p>标记时阻止此行为？也就是说,如何在下面的最小工作示例中将"Life is bad" 文本<p>与其计数器显示在同一行,同时将文本保留在HTML标记中的标记内？

这是最小的工作示例(以及JSFiddle):

HTML:

<div id="test">
    <ol>
        <li class="continuous-list">Life is good</li>
        <li class="continuous-list">
            <p>Life is bad</p>
        </li>
    </ol>
    <ol>
        <li class="continuous-list">Life is good</li>
        <li class="continuous-list">Life is good</li>
    </ol>
</div>

CSS:

#test {
    counter-reset: continuous-counter;
}
li.continuous-list {
    list-style-type: none;
    counter-increment: continuous-counter;
}
li.continuous-list:before {
    content:"(" counter(continuous-counter)") ";
}