stat545a-2013-hw01_woollard-geo.rmd

STAT 545A Homework 1
========================================================

My first R Markdown Document. Here's how to make one: 
* open RStudio
* select File > New > R Markdown
* paste the R code in the skeleton.
* click Knit HTML to preview the page
* save the HTML locally and / or publish to RPubs

```{r}
n  <- 50
a <- 2
b <- -3
sigSq <- 0.5
x <- runif(n)
y <- a + b * x + rnorm(n, sd = sqrt(sigSq))
(avgX <- mean(x))

```

kntr takes the code in the .Rmd document and makes a .md document and figures.

```{r fig.width=7, fig.height=3}
plot(x, y)
abline(a, b, col = "red")
```