The file contains patterns of sonar signals bounced off a metal cylinder or bounced off a roughly cylindrical rock at various angles and under various conditions. The transmitted sonar signal is a frequency-modulated chirp, rising in frequency.
Format
A data frame containing 208 rows and 60 columns.
- V1
Number in the range 0.0 to 1.0 that represents the energy within a particular frequency band, integrated over a certain period of time.
- V2
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V1)- mine.crit
Criterion: Did a sonar signal bounce off a metal cylinder (or a rock)?
Values:
TRUE(metal cylinder) vs.FALSE(rock) (53.37% vs.\ 46.63%).
Details
We made the following enhancements to the original data for improved usability:
The binary factor criterion variable with exclusive "m" and "r" values was converted to a logical
TRUE/FALSEvector.
Other than that, the data remains consistent with the original dataset.
References
Gorman, R. P., and Sejnowski, T. J. (1988). Analysis of hidden units in a layered network trained to classify sonar targets. Neural Networks, 1, pp. 75–89.
See also
Other datasets:
blood,
breastcancer,
car,
contraceptive,
creditapproval,
fertility,
forestfires,
heart.cost,
heart.test,
heart.train,
heartdisease,
iris.v,
mushrooms,
titanic,
voting,
wine