onesamp {DAAG}R Documentation

Paired Sample t-test

Description

This function performs a t-test for the mean difference for paired data, and produces a scatterplot of one column against the other column, showing whether there was any benefit to using the paired design.

Usage

onesamp(dset=corn, x="unsprayed", y="sprayed", xlab=NULL, ylab=NULL, dubious=NULL, conv=NULL, dig=2)

Arguments

dset a matrix or dataframe having two columns
x name of column to play the role of the `predictor'
y name of column to play the role of the `response'
xlab horizontal axis label
ylab vertical axis label
dubious
conv
dig

Value

A scatterplot of y against x together with estimates of standard errors and standard errors of the difference (y-x).
Also produced is a confidence interval and p-value for the test.

Author(s)

J.H. Maindonald

Examples

onesamp(dset = pair65, x = "ambient", y = "heated", xlab =
        "Amount of stretch (ambient)", ylab =
        "Amount of stretch (heated)")
[Package DAAG version 0.76 Index]