Voltage Data

Description

The E2.6 data frame has 10 rows and 2 columns.

Usage

data(E2.6)

Format

This data frame contains the following columns:

V.a

a numeric vector, actual voltage.

V.c

a numeric vector, voltage computed from the measured power outout (using light output from electronic flash).

Details

A definition of efficiency is the ratio V.c/V.a. Obtain a model for efficiency E as a regresion in V.a. Use a quadratic polynomial. Examine the fit.

Source

Armin Lehning, Speedotron Corporation.

Examples

data(E2.6)
E2.6.m1 <- lm(V.c/V.a ~ V.a + I(V.a^2), data=E2.6)
plot(E2.6.m1)

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(SenSrivastava)
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/SenSrivastava/E2.6.Rd_%03d_medium.png", width=480, height=480)
> ### Name: E2.6
> ### Title: Voltage Data
> ### Aliases: E2.6
> ### Keywords: datasets
> 
> ### ** Examples
> 
> data(E2.6)
> E2.6.m1 <- lm(V.c/V.a ~ V.a + I(V.a^2), data=E2.6)
> plot(E2.6.m1)
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>