EDA-practice.Rmd

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output:
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#Base Plot System
Oldest system, more intuitive. Start off with a plot function, and add on features one by one. Can use annotations to add/modify plot (such as text, lines, points, and axis). Convenient but can't go back once started.
```{r}
library(datasets)
data(cars)
with(cars, plot(speed,dist))
```

#Lattice System & Plot
Plots are created with a single function call (xyplot, bwplot, etc.) - most useful for conditioning types of plots.
```{r}
library(lattice)
state <- data.frame(state.x77, region= state.region)
xyplot(Life.Exp ~ Income | region, data=state, layout= c(4,1))
```

#ggplot2 System
Requires ggplot package. Splits the difference between base plot syste and lattice systems. Automatically arranges spacing, text, titles - but still customizable. 
```{r}
library(ggplot2)
data(mpg)
qplot(displ, hwy, data=mpg)
```