summary: Summary statistics for paired samples

In PairedData: Paired Data Analysis

Description

Classical and robust statistics (location, scale and correlation) for paired samples.

Usage

## S4 method for signature 'paired'
summary(object,tr=0.2)

Arguments

object	an object of class paired.
tr	percenatge of trimming.

Value

A list with a first table corresponding to location and scale statistics and a second table to Pearson and winsorized correlation.

The first table contains four rows corresponding to calculations for x, y, x-y and (x+y)/2 variables. The location and scale statistics are given in columns.

n	sample size.
mean	mean.
median	median.
trim	trimmed mean (tr=0.2)
sd	standard deviation.
IQR	interquartile range (standardised to be consistent with the sd in the normal case)
median ad	median of absolute deviations (standardised)
mean ad	mean of absolute deviations (standardised)
sd(w)	winsorised standard deviation (tr=0.2 and standardised)
min	minimum value.
max	maximum value.

Author(s)

Stephane CHAMPELY

Examples

z<-rnorm(20)
x<-rnorm(20)+z
y<-rnorm(20)+z+1
p<-paired(x,y)
summary(p)

Example output

Loading required package: MASS
Loading required package: gld
Loading required package: mvtnorm
Loading required package: lattice
Loading required package: ggplot2

Attaching package: 'PairedData'

The following object is masked from 'package:base':

    summary

$stat
         n       mean     median       trim       sd   IQR (*) median ad (*)
x (x)   20 -0.2605300 -0.1304759 -0.1656371 1.335601 1.2839514     1.2606183
y (y)   20  0.9433965  1.0013114  0.9788450 1.667414 1.5020554     1.5569226
x-y     20 -1.2039265 -1.5799088 -1.3329284 1.413046 1.5370552     1.3480841
(x+y)/2 20  0.3414332  0.2355220  0.3213359 1.335243 0.8970679     0.8527932
        mean ad (*)     sd(w)       min      max
x (x)      1.388289 1.3652740 -2.840402 2.403948
y (y)      1.567083 1.4830515 -2.544897 4.636996
x-y        1.434678 1.4733941 -3.908782 1.161724
(x+y)/2    1.143892 0.8608821 -2.314829 3.520472

$cor
            cor      wcor
(x,y) 0.5764257 0.2634895

PairedData documentation built on May 1, 2019, 6:49 p.m.