jevons
(Package: alr4) :
Jevon's gold coin data
In a study of coinage, W. Stanley Jevons weighed 274 gold sovereigns that he had collected from circulation in Manchester, England. For each coin, he recorded the weight, after cleaning, to the nearest .001 gram, and the date of issue. The age classes are coded 1 to 5, roughly corresponding to the age of the coin in decades. The standard weight of a gold sovereign was suppose to be 7.9876 grams; minimum legal weight was 7.9379 grams.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: jevons
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twins
(Package: alr4) :
Burt's twin data
The given data are IQ scores from identical twins; one raised in a foster home, and the other raised by birth parents.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: twins
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lakes
(Package: alr4) :
Lake zooplankton diversity
These data give the number of known crustacean zooplankton species for 69 world lakes. Also included are a number of characteristics of each lake. There are missing values.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: lakes
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shocks
(Package: alr4) :
Small electric shocks in dairy cows
Results of a small experiment to learn about the effects of small electric shocks on dairy cows.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: shocks
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domedata
(Package: alr4) :
Metrodome fan experiment
These files give the results of two experiments to see if manipulating the air conditioning fans in the Minneapolis metrodome can effect the distance travelled by a baseball. The data in domedata were collected in April 2003. The experiment was repeated in May 2003 and domedata1 gives the combined data from the two experiments.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: domedata, domedata1
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Heights
(Package: alr4) :
Pearson-Lee data
Karl Pearson organized the collection of data on over 1100 families in England in the period 1893 to 1898. This particular data set gives the Heights in inches of mothers and their daughters, with up to two daughters per mother. All daughters are at least age 18, and all mothers are younger than 65. Data were given in the source as a frequency table to the nearest inch. Rounding error has been added to remove discreteness from graph.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: Heights
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brains
(Package: alr4) :
Mammal brain weights
The data provided gives the average body weight in kilograms and the average brain weight in grams for sixty-two species of mammals.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: brains
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sniffer
(Package: alr4) :
Sniffer data
When gasoline is pumped into a tank, hydrocarbon vapors are forced out and into the atmosphere. To reduce this significant source of air pollution, devices are installed to capture the vapor. In testing these vapor recovery systems, a "sniffer" measures the amount recovered. John Rice provided the data for the file sniffer.txt.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: sniffer
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This experiment was apparently done by S. S. Stevens and colleagues in March 1962, although the exact reference is lost. 10 subjects were played tones at each of 5 loudnesses, presumably in random order. Subjects were asked to draw a line on paper whose length matched the loudness of the tone. Each subject repeated each loudness 3 times, for a total of 30 trials per subject. The original data are lost; reported here is the mean of the 3 log-lengths for each loudness, the sd of the three log-lengths, and the number of replications, which is always 3.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: Stevens
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stopping
(Package: alr4) :
Stopping distances
Ezekiel and Fox (1959) data on auto stopping distances.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: stopping
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providing 
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