R Markdown Shortcut

 

1. Add one line between elements:

* Item 1
* Item 2
* Item 3
<p>&nbsp;</p>
* Item 4
* Item 5
* Item 6

Displayed

• Item 1
• Item 2
• Item 3

   

• Item 4
• Item 5
• Item 6

 

2. Nested Lists

1. Item 1
    1. A corollary to the above item.
    2. Yet another point to consider.
2. Item 2
    * A corollary that does not need to be ordered.
        * This is indented eight spaces, because it is four spaces further than the item above.
        * You might want to consider making a new list.
3. Item 3

Displayed

1. Item 1
   1. A corollary to the above item.
   2. Yet another point to consider.
2. Item 2
   • A corollary that does not need to be ordered.
     • This is indented eight spaces, because it is four spaces further than the item above.
     • You might want to consider making a new list.
3. Item 3

 

3. Inline Links

The following hyperlink to https://in.bgu.ac.il/en/pages/default.aspx has link text that says ""Visit BGU!": [Visit BGU!](https://in.bgu.ac.il/en/pages/default.aspx).

Displayed

The following hyperlink to https://in.bgu.ac.il/en/pages/default.aspx has link text that says "“Visit BGU!”: Visit BGU!.

 

4. Tables

By default, columns are left aligned. You can specify the alignment of any column by adding colons into each column of the header row separator, on the left (for left alignment), right (for right alignment), or both sides (for center alignmnent).

Note: Although you may wish to line up the pipes between each column for ease of reading, it isn’t required (see the example below).

| Left-Aligned  | Center Aligned  | Right Aligned |
| :------------ |:---------------:| -------------:|
| col 3 is      | some wordy text | $1600 |
| col 2 is      | centered        | $12 |
| zebra stripes | are neat        | $1 |

Left-Aligned	Center Aligned	Right Aligned
col 3 is	some wordy text	$1600
col 2 is	centered	$12
zebra stripes	are neat	$1

 

5. Insert one local image in R markdown and center it

knitr::include_graphics(rep('C:/Users/Kaining/Pictures/Saved Pictures/FAAB.jpg'))

Logo of FAAB

# Take care to use '/' instead of '\' in the image path
# Use {r, echo=T, fig.align='center'} after three dots

 

6. Insert one local image in R markdown and repeat it for 3 times

knitr::include_graphics(rep('C:/Users/Kaining/Pictures/Saved Pictures/FAAB.jpg',3))
# Take care to use '/' instead of '\' in the image path

 

7. Insert multiple local images in R markdown

knitr::include_graphics(c('C:/Users/Kaining/Pictures/Saved Pictures/BGU.png',
                          'C:/Users/Kaining/Pictures/Saved Pictures/FAAB.jpg',
                          'C:/Users/Kaining/Pictures/Saved Pictures/Agriculture.png'))
# Take care to use '/' instead of '\' in the image path

BGU,FAAB, and Agriculture department logos

 

8. Steps to create slides and publish on Github

1. Greate a R project

2. Creat R markdown inside this project https://silvia.rbind.io/blog/deploying-xaringan-slides/

3. Choose Xaringan template to write a slide

4. If there is images, need to be in the same folder with this .rmd file

5. To preview the slides, use function ‘xaringan::inf_mr()’

6. Greate a Github account then make a new empty repository

7. Publsih it on Github

8. Manually change html link so the url could be shared https://github.com/tcgriffith/xaringan_gh

 

Shortcut

1. To knit: Ctrl + Shift + K

2. To live preview the output: xaringan::inf_mr()

 

9. Often used argument

1. eval=FALSE, show code without execute it

2. include=FALSE， execute code without include both code and result in the output

3. echo=FALSE， Only show result in the output without code chunk

4. warning=FALSE， Don’t show warning in the output

5. error=FALSE， Don’t show error in the output

6. message=FALSE， Don’t show message in the output