E6.10 | R Documentation |
The E6.10
data frame has 32 rows and 3 columns.
data(E6.10)
This data frame contains the following columns:
a numeric vector, number of respondents, weights for the linear regression.
a numeric vector, computed travel times between a pair of zones in Chicago.
a numeric vector, perceived travel times, as reported to the U.S. Census Bureau.
x
where computed from bus timetables, adding an average waiting time at the stop,
and an average walking time from zone center to bus stop. y
is the average reported by n
travelers, to the US census bureau. The variable
t
introduced in the example below is the one for multiple bus transfers, used
in example 8.1 page 161.
The data where selected by one of the authors from a larger data set compiled by Cæsar Singh from census tapes, timetables and maps.
data(E6.10)
## Manipulations of the data for example 8.1, page 161:
t <- c(0,1,rep(0,20),1,rep(0,5),1,rep(0,3))
e6.10 <- data.frame(E6.10, t=t)
rm(t)
summary(e6.10)
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