Vertical bar in an equation inside a table and Slidy format

[jjescario]

Although Xaringan is great, I think these suggestions will improve it for some users:

1. If you want to include in a column of a table a vertical bar in order to express, for example, a conditional mean like $E(y|x)$. The vertical bar is interpreted as a column separator. Would it be possible that Xaringan interpret it inside a formula as a vertical bar instead of as a column separator? I solved the problem using an inclined bar, but it would be nice to use a vertical bar.
2. When reporting estimates in a long table, the table is cut after some rows. Would it be possible to present the table as in the slidy presentation format?
   Thank vou very much.
   José Julián Escario

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[yihui]

1. Please follow the issue guide and provide a reproducible example. I can't reproduce your problem:

---
title: "test"
output:
  xaringan::moon_reader: null
---

$E(y|x)$

2. Yes, but again, it's hard to help you without an example.

[jjescario]

In this table, for example, the vertical bars inside the formulas are interpreted as a column separator

---
title: "test"
output:
  xaringan::moon_reader: null
---

## Regression models: Linear Regression Model

Assumptions                       |  Linear Regression Model (LRM)                                 
-------------------------       | ------------                            
1. About the distribution    | $$Y_i|x_i \sim N(\mu_i, \sigma^2)$$                      
2. About the mean              | $E(Y_i|x_i) = \mu_i  =x'_i\beta= \eta_i$

Rendering the file Rmd separates "$$Y_i" in one column and the rest "|x_i \sim N(\mu_i, \sigma^2)$$" in another colmun.
The same happens with the next line. "$E(Y_i" appears in one colmun and "x_i) = \mu_i =x'_i\beta= \eta_i$" in the next column. Consequently, they yields 3 columns when only two columns should appear. See attached document.

José Julián

Renddering the Rmd file.pdf

[yihui]

You can use \vert for |: https://tex.stackexchange.com/q/498/9128

[jjescario]

Thank you so much.
What about the second theme? Do you plan in the future to add the option to enable long table scrolling like the Slidy format in RMarkdown?

[yihui]

I don't have a plan, but recently I've been working on a totally different slides format, which is based on the markdown package (https://github.com/rstudio/markdown) and makes it possible to scroll over one slide if it's too long: https://cran.r-project.org/web/packages/markdown/vignettes/slides.html#lengthy-slides