NBSdiff1kg {longmemo}

NBS measurement deviations from 1 kg

Description

NBS weight measurements - deviation from 1 kg in micrograms, see the references. The data are listed in chronological sequence by row.

Usage

data(NBSdiff1kg)

Format

A time series of length 289.

Source

Jan Beran and Brandon Whitcher by E-mail in fall 1995.

References

H.P. Graf, F.R. Hampel, and J.Tacier (1984). The problem of unsuspected serial correlations. In J. Franke, W. Härdle, and R.D. Martin, editors, Robust and Nonlinear Time Series Analysis, Lecture Notes in Statistics 26, 127–145; Springer.

Pollak, M., Croakin, C., and Hagwood, C. (1993). Surveillance schemes with applications to mass calibration. NIST report 5158; Gaithersburg, MD.

Examples

data(NBSdiff1kg)
plot(NBSdiff1kg)