sonar: Sonar data

In 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

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.

V3

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.

V4

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.

V5

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.

V6

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.

V7

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.

V8

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.

V9

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.

V10

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.

V11

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.

V12

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.

V13

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.

V14

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.

V15

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.

V16

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.

V17

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.

V18

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.

V19

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.

V20

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.

V21

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.

V22

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.

V23

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.

V24

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.

V25

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.

V26

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.

V27

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.

V28

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.

V29

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.

V30

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.

V31

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.

V32

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.

V33

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.

V34

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.

V35

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.

V36

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.

V37

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.

V38

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.

V39

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.

V40

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.

V41

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.

V42

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.

V43

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.

V44

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.

V45

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.

V46

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.

V47

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.

V48

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.

V49

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.

V50

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.

V51

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.

V52

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.

V53

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.

V54

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.

V55

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.

V56

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.

V57

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.

V58

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.

V59

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.

V60

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.

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" in Neural Networks, Vol. 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

FFTrees documentation built on June 7, 2023, 5:56 p.m.