univar: Descriptive Statistics for a Continuous variable

In tdisplay: Tool Box for Data Importation and Display

Description

The function provides descriptive statistics for a continuous variable, possibly according to levels of one or several categorical variables.

Usage

  univar(formula, data, digits = 3)
  ## S3 method for class 'univar'
print(x, ...)
  

Arguments

formula	A formula. See examples for syntax.
data	A data frame containing the variables indicated in the formula.
digits	A scalar indicating the number of decimal digits left when rounding the result of the statictics.
x	An object of class “univar”.
...	Further arguments to be passed to the functions.

Value

A list with components CALL, tab, nbfact and digits. Component tab is the data frame built according to the formula and function used in the call.

See Also

summary, aggregate

Examples

tmp <- data.frame(
    f1 = c(NA, rep("a", 2), rep("b", 5), NA, "a", "a"),
    f2 = rep(c("c", "d"), times = c(5, 6)),
    f3 = rep(c("e", NA, "f"), times = c(4, 1, 6)),
    y1 = c(rnorm(n = 9, mean = 10, sd = 5), NA, 2.1)
    )
tmp

univar(formula = y1 ~ f1, data = tmp)
univar(formula = y1 ~ f1, data = tmp, digits = 1)
tab <- univar(formula = y1 ~ f1, data = tmp)
tab$tab

univar(formula = y1 ~ 1, data = tmp)

univar(formula = y1 ~ f1 + f2, data = tmp)

  

tdisplay documentation built on May 2, 2019, 4:46 p.m.