Section B

And this is a nother one !

Subsection A.1

This is a subsection.

Subsubsection A.1.1

This is a sub-subsection.

Subsubsection A.1.2

This is a nother sub-subsection !

Line break

For a line break, you have to add two or more blank spaces at the end of the line.
For example, this is a new line. (But this is not !)

Paragraphs

This is a paragraph. It has two sentences.

This is another paragraph. It also has two sentences.

Paragraphs should be separated by one or more blank lines between them.

Bold & Italics

Italic, Italic, Bold, Bold, Bold and Italic, Bold and Italic

Lists

Unnumbered list

item 1
item 2
item 3

Numbred list

item 1
item 2
item 3
Note that a number is automatically added

Nested list

Ordered One
- Unordered First
  - item a
  - item b
- Unordered Second
- Unordered Third
Ordered Second
- Unordered One
- Unordered Two
- Unordered Three

Block Quotes

The following paragraph is quoted from another source:

We were spending too much time on the logistics of sharing our results.

— Julia Silge, data scientist at Stack Overflow

Hyper Links & Images

An Markdown document can also include

Links like this Rmarkdown reference, this Markdown Guide , and this Rmarkdown Rstudio.
Images like this one

Inline code & code chunk

To write an inline code like this one 1+1, put it inside two backticks. A backtick is a special character you might not have seen before. If this is the case then check this or this to get some help.

A code chunk is specified by three backticks:

1 + 1

Here is an example of a code chunk in python and r:

x = 1 + 1

def foo():
    print('foo is a function')

a <- rnorm(10, 5, 2)
for (i in 1:10) {
  print(a[1])
}

Tables

You can also write a table like this

Column 1	Column 2	Column 3
a1	b1	c1
a2	b2	c2

This table | is | very simple but coll

In you need help, you may use this tool Online Markdown table generator

Math

You can use mathematical notation if you surround your text by dollar signs $ for inline mathematics and $$ for displayed equations. Do not leave a space between the $ and your mathematical notation.

Exemple: $\sum_{n=1}^{10} n^2$ is rendered as $\sum_{n=1}^{10} n^2$ and $$\sum_{n=1}^{10} n^2$$ is rendered as \[ \sum_{n=1}^{10} n^2 \]

The mathematical typesetting is based on LaTeX, so if you need to search for the way to make a particular symbol, include latex in your search.

Here are some common mathematical things you might use in statistics

Output	LaTeX
$x = y$	$x = y$
$x < y$	$x < y$
$x \le y$	$x \leq y$
$x \ge y$	$x \geq y$
$x \neq y$	$x \neq y$
$\bar{x}$	$\bar{x}$
$\hat{x}$	$\hat{x}$
$x^{n}$	$x^{n}$
$x_{n}$	$x^{n}$
$\frac{a}{b}$	$\frac{a}{b}$
$X \sim \text{Normal}(\mu, \sigma)$	$X \sim \text{Normal}(\mu, \sigma)$
$\sum_{x = a}^{b} f(x)$	$\sum_{x = a}^{b} f(x)$
$\int_{-\infty}^{b} f(x) dx$	$\int_{-\infty}^{b} f(x) dx$
$\prod_{x = a}^{b} f(x)$	$\prod_{x = a}^{b} f(x)$
$\lim_{x \to \infty} f(x)$	$\lim_{x \to \infty} f(x)$
$\alpha$	$\alpha $
$\beta$	$\beta $
$\theta$	$\theta$
$\gamma$	$\gamma$

For more about writing Math visit https://en.wikibooks.org/wiki/LaTeX/Mathematics, https://www.tutorialspoint.com/latex_equation_editor.htm, and https://www.latex4technics.com/.

test

Section A