CHAPTER 3 HISTOGRAMS

3.1 Creating a Basic Histogram

## 'data.frame':    30 obs. of  2 variables:
##  $ weight: num  4.17 5.58 5.18 6.11 4.5 4.61 5.17 4.53 5.33 5.14 ...
##  $ group : Factor w/ 3 levels "ctrl","trt1",..: 1 1 1 1 1 1 1 1 1 1 ...

3.2 Optional Parameters

3.3 Changing Bin Sizes

## 'data.frame':    1000 obs. of  1 variable:
##  $ var_name: num  440 514 554 383 521 ...

3.4 Advanced Histogram Features

## [1] 5.073
## [1] 0.7011918