sonar: Sonar data

In ndphillips/FFTrees: Generate, Visualise, and Evaluate Fast-and-Frugal Decision Trees

Sonar data

Description

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.

Usage

sonar

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

(see V1)

V3

(see V1)

V4

(see V1)

V5

(see V1)

V6

(see V1)

V7

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V8

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V9

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V10

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V11

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V12

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V13

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V14

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V15

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V16

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V17

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V18

(see V1)

V19

(see V1)

V20

(see V1)

V21

(see V1)

V22

(see V1)

V23

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V24

(see V1)

V25

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V26

(see V1)

V27

(see V1)

V28

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V29

(see V1)

V30

(see V1)

V31

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V32

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V33

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V34

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V35

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V36

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V37

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V38

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V39

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V40

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V41

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V42

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V43

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V44

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V45

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V46

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V47

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V48

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V49

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V50

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V51

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V52

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V53

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V54

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V55

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V56

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V57

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V58

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V59

(see V1)

V60

(see 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/FALSE vector.

Other than that, the data remains consistent with the original dataset.

Source

https://archive.ics.uci.edu/ml/datasets/Connectionist+Bench+(Sonar,+Mines+vs.+Rocks)

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

ndphillips/FFTrees documentation built on April 25, 2024, 1:07 a.m.