\name{engel} \alias{engel} \title{Engel Data} \description{ Engel Food Expenditure Data used in Koenker and Bassett(1982). This is a regression data set consisting of 235 observations on income and expenditure on food for Belgian working class households. } \usage{data(engel)} \format{A data frame containing 235 observations on 2 variables} \tabular{rl}{ [,1] \tab "Annual Household Income in Belgian Francs"\cr [,2] \tab "Annual Household Food Expenditure in Belgian Francs"\cr } \references{ Koenker, R. and Bassett, G (1982) Robust Tests of Heteroscedasticity based on Regression Quantiles, Econometrica, 50,43--61.} \keyword{datasets}