Table 2 Sample observations and CART results.

From: Predicting soil cone index and assessing suitability for wind and solar farm development in using machine learning techniques

Parameters

Electrical conductivity (mS/cm)

Soil bulk density (g/cm3)

Soil moisture content (%)

Sampling depth (cm)

Observation 1

3.76

1.19

21.6

15

Observation 2

2.81

1.32

14.9

30

Observation 3

4.19

1.05

18.2

20

Observation 4

1.99

1.45

12.8

40

Observation 5

3.12

1.22

16.5

25

Observation 6

2.33

1.56

10.4

35

Observation 7

4.57

0.98

20.1

10

Observation 8

2.98

1.29

15.3

30

Observation 9

3.89

1.11

17.8

20

Observation 10

1.67

1.63

9.5

45

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