Do histogram with median

Plot a histogram with the median, first quartile, and third quartile reported.

Usage

doHist(
  data,
  var,
  xlab = var,
  title = NULL,
  show.title = TRUE,
  br = ceiling(sqrt(nrow(data))),
  digits = 3,
  score.lab = "scorable",
  ...
)

Arguments

data

data.frame with column names

var

string of variable in data to graph on

xlab

x-axis label

title

histogram title

show.title

logical. If TRUE (default), the title is shown

br

breaks in histogram. By default, the number of bins is taking as the ceiling of the square root of the number of rows in data

digits

number of digits to round for median, Q1, Q3

score.lab

label for non-missing cases

...

additional arguments to hist

Value

A histogram with some annotated values.

Details

Expects missing to be NA. Do not filter out missing data as this function reports missing data counts.

Author

Samuel Leung, Derek Chiu

Examples

doHist(mtcars, "mpg")

doHist(mtcars, "mpg", "MPG")

doHist(mtcars, "mpg", title = "Distribution of MPG")