Start with a cool section

A bit introduction here. You can use traditional Markdown syntax, such as links and code. # Followed by another section Of course you can write lists: - apple - pear - banana Or ordered lists: 1. items 1. will 1. be 1. ordered - nested - items # More sections ## Hi hi hi ## Hello hello hello ## Howdy howdy howdy # Okay, some R code

fit = lm(dist ~ speed, data = cars)
b = coef(fit) # coefficients
summary(fit)
## 
## Call:
## lm(formula = dist ~ speed, data = cars)
## 
## Residuals:
##     Min      1Q  Median      3Q     Max 
## -29.069  -9.525  -2.272   9.215  43.201 
## 
## Coefficients:
##             Estimate Std. Error t value Pr(>|t|)    
## (Intercept) -17.5791     6.7584  -2.601   0.0123 *  
## speed         3.9324     0.4155   9.464 1.49e-12 ***
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 15.38 on 48 degrees of freedom
## Multiple R-squared:  0.6511, Adjusted R-squared:  0.6438 
## F-statistic: 89.57 on 1 and 48 DF,  p-value: 1.49e-12

The code will be highlighted in all output formats. # And some pictures

par(mfrow = c(2, 2), pch = 20, mar = c(4, 4, 2, .1),
bg = 'white')
plot(fit)
Regression diagnostics

Regression diagnostics

A little bit math

Our regression equation is \(Y=-17.5790949+3.9324088x\), and the model is:\[ Y = \beta_0 + \beta_1 x + \epsilon\] # Pandoc extension: definition lists Programmer : A programmer is the one who turns coffee into code. LaTeX : A simple language with a couple of backslashes. # Pandoc extension: examples We have some examples. (@) Think what is 0.3 + 0.4 - 0.7. Zero. Easy. (@weird) Now think what is 0.3 - 0.7 + 0.4. Still zero? People are often surprised by (@weird). # Pandoc extension: tables A table here. Table: Demonstration of simple table syntax.

Sepal.Length Sepal.Width Petal.Length Petal.Width Species
5.1 3.5 1.4 0.2 setosa
4.9 3.0 1.4 0.2 setosa
4.7 3.2 1.3 0.2 setosa
4.6 3.1 1.5 0.2 setosa
5.0 3.6 1.4 0.2 setosa
5.4 3.9 1.7 0.4 setosa
# Pandoc extens ion: footnotes
We can also wri te footnotes[^ 1].
[^1]: hi, I’m a footnote
Or write some i nline footnote s^[as you can s ee here].
# Pandoc extens ion: citations
We compile the R Markdown fil e to Markdown t hrough **knitr **
[@R-knitr] in R [@R-base]. Fo r more about @R -knitr,
see <http://yih ui.name/knitr> . 
sample (100, 10)
##  [1] 17 78 96 54  1 46 18 40 34 62

A long caption.

library(shiny)
sliderInput("bins", "Number of bins:", min = 1, max = 50,
value = 30)

renderPlot({
x <- faithful[, 2] # Old Faithful Geyser data
bins <- seq(min(x), max(x), length.out = input$bins + 1)
# draw the histogram with the specified number of bins
hist(x, breaks = bins, col = 'darkgray', border = 'white')
})