newcomb {MASS} | R Documentation |

##
Newcomb's Measurements of the Passage Time of Light

### Description

A numeric vector giving the ‘Third Series’ of measurements of the
passage time of light recorded by Newcomb in 1882. The given values
divided by 1000 plus 24.8 give the time in millionths of a second for
light to traverse a known distance. The ‘true’ value is now
considered to be 33.02.

The dataset is given in the order in Staudte and Sheather. Stigler
(1977, Table 5) gives the dataset as

28 26 33 24 34 -44 27 16 40 -2 29 22 24 21 25 30 23 29 31 19
24 20 36 32 36 28 25 21 28 29 37 25 28 26 30 32 36 26 30 22
36 23 27 27 28 27 31 27 26 33 26 32 32 24 39 28 24 25 32 25
29 27 28 29 16 23

However, order is not relevant to its use as an example of robust
estimation. (Thanks to Anthony Unwin for bringing this difference to our
attention.)

### Usage

```
newcomb
```

### Source

S. M. Stigler (1973)
Simon Newcomb, Percy Daniell, and the history of robust estimation
1885–1920.
*Journal of the American Statistical Association* **68**, 872–879.

S. M. Stigler (1977)
Do robust estimators work with *real* data?
*Annals of Statistics*, **5**, 1055–1098.

R. G. Staudte and S. J. Sheather (1990)
*Robust Estimation and Testing.* Wiley.

[Package

*MASS* version 7.3-58.3

Index]