summ: Summary of the variables of a data set

In mlesnoff/rnirs: Dimension reduction, Regression and Discrimination for Chemometrics

Summary of the variables of a data set

Description

Calculation of summary statistics for each column of a matrix or data frame. In the present version, only quantitative variables are considered.

Usage

summ(X, nam = NULL, digits = 3)

Arguments

X	A matrix or data frame containing the variables to summarize.
nam	Names of the variables to summarize (vector of character strings). Default to NULL (all the columns are considered).
digits	The number of digits for the numerical outputs.

Value

A dataframe of summary statistics.

Examples

dat <- data.frame(
  v1 = rnorm(10),
  v2 = c(NA, rnorm(8), NA),
  v3 = c(NA, NA, NA, rnorm(7))
  )
dat

summ(dat)

summ(dat, nam = c("v1", "v3"))

mlesnoff/rnirs documentation built on April 24, 2023, 4:17 a.m.