# The BrailleR package

## Introduction

This vignette briefly demonstrates the functions of the BrailleR package. It is far from complete as it is currently a work in progress file for testing various aspects of vignette creation using the knitr package.

## Histograms

The first and most commonly used example of the value of the BrailleR package to a blind user is the creation of a histogram.

    x=rnorm(1000)
    VI(hist(x))

    ## This is a histogram, with the title: Histogram of x
    ##  x is marked on the x-axis.
    ## There are a total of 1000 elements for this variable.
    ## It has 13 bins with equal widths, starting at -3 and ending at 3.5 .
    ## The mids and counts for the bins are:
    ## mid = -2.75  count = 2
    ## mid = -2.25  count = 21
    ## mid = -1.75  count = 48
    ## mid = -1.25  count = 92
    ## mid = -0.75  count = 145
    ## mid = -0.25  count = 200
    ## mid = 0.25  count = 190
    ## mid = 0.75  count = 155
    ## mid = 1.25  count = 76
    ## mid = 1.75  count = 45
    ## mid = 2.25  count = 16
    ## mid = 2.75  count = 8
    ## mid = 3.25  count = 2

The mean \(\mu\) of this random sample is -0.0089973 which of course should be near enough to zero.