Intervals Between Vehicles on a Road

Description

Intervals between the times that 129 successive vehicles pass a point on a road, measured in seconds.

Usage

data(traffic)

Format

The traffic data is a vector of 128 observations.

Source

Bartlett, M.S. (1963) Statistical estimation of density functions Sankhya: The Indian Journal of Statistics, Series A, Vol. 25, No. 3, 245–254.

J<c3><b6>rgensen, B. (1982) Statistical Properties of the Generalized Inverse Gaussian Distribution. Lecture Notes in Statistics, Vol. 9, Springer-Verlag, New York

Examples

data(traffic)
str(traffic)

### Fit the generalized inverse Gaussian distribution
gigFit(traffic)

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)

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> library(GeneralizedHyperbolic)
Loading required package: DistributionUtils
Loading required package: RUnit
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/GeneralizedHyperbolic/traffic.Rd_%03d_medium.png", width=480, height=480)
> ### Name: traffic
> ### Title: Intervals Between Vehicles on a Road
> ### Aliases: traffic
> ### Keywords: datasets
> 
> ### ** Examples
> 
> data(traffic)
> str(traffic)
 num [1:128] 2.8 3.4 1.4 14.5 1.9 2.8 2.3 15.3 1.8 9.5 ...
> 
> ### Fit the generalized inverse Gaussian distribution
> gigFit(traffic)

Data:      traffic 
Parameter estimates:
     chi       psi    lambda  
 2.61984   0.02674  -0.23545  
Likelihood:         -49.93121 
Method:             Nelder-Mead 
Convergence code:   0 
Iterations:         188 
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>