Table 2 Detailed statistics about the dataset.

From: Modeling the mechanical properties of lightweight high-strength concrete incorporating supplementary cementitious materials using multi-expression programming and random forest

Statistics

W/B ratio

C

FA

BS

SF

NFA

LWA

BF

FS

Compressive strength (data points = 170)

Mean

0.34

403.28

39.89

9.19

20.94

697.98

568.80

1.00

46.79

Standard Error

0.00

6.75

4.27

2.46

1.92

19.32

15.45

0.21

1.22

Median

0.35

440.00

0.00

0.00

0.00

694.00

586.00

0.00

44.45

Mode

0.40

440.00

0.00

0.00

0.00

1120.00

270.00

0.00

36.40

SD

0.05

88.03

55.74

32.02

25.06

251.94

201.46

2.78

15.93

Sample Variance

0.00

7749.47

3106.55

1025.50

628.08

63474.85

40587.49

7.73

253.86

Kurtosis

− 1.51

0.28

3.89

12.46

2.37

− 0.46

− 0.09

10.20

− 0.82

Skewness

− 0.20

− 1.03

1.78

3.65

1.06

− 0.05

0.48

3.24

0.42

Range

0.16

362.89

250.00

162.00

150.00

1120.00

869.00

13.75

66.45

Minimum

0.24

187.11

0.00

0.00

0.00

0.00

270.00

0.00

19.65

Maximum

0.40

550.00

250.00

162.00

150.00

1120.00

1139.00

13.75

86.10

Flexural Strength (data points = 161)

Mean

0.33

417.94

47.27

7.02

40.84

626.83

682.09

0.19

5.57

Standard Error

0.01

10.80

5.41

2.17

4.40

16.40

24.12

0.05

0.17

Median

0.30

420.00

0.00

0.00

25.50

640.00

656.00

0.00

5.25

Mode

0.40

440.00

0.00

0.00

0.00

640.30

1205.90

0.00

5.30

SD

0.07

137.09

68.70

27.55

55.79

208.08

306.00

0.68

2.16

Sample Variance

0.00

18793.68

4719.87

758.84

3112.85

43297.55

93634.27

0.46

4.65

Kurtosis

− 0.48

4.67

0.73

15.84

3.72

1.23

− 1.00

10.33

1.30

Skewness

− 0.04

1.50

1.31

4.09

1.95

− 0.59

0.12

3.46

0.61

Range

0.31

712.89

250.00

135.00

221.00

1035.60

1205.90

2.75

12.62

Minimum

0.17

187.11

0.00

0.00

0.00

0.00

0.00

0.00

0.73

Maximum

0.48

900.00

250.00

135.00

221.00

1035.60

1205.90

2.75

13.35

Tensile Strength (data points = 186)

Mean

0.39

401.74

25.03

6.08

36.03

525.98

747.22

0.16

3.72

Standard Error

0.01

7.11

3.91

1.89

3.20

21.02

18.19

0.05

0.14

Median

0.35

414.00

0.00

0.00

24.75

610.50

754.50

0.00

3.51

Mode

0.40

440.00

0.00

0.00

0.00

0.00

387.59

0.00

2.91

SD

0.16

97.02

53.30

25.73

43.66

286.62

248.11

0.63

1.89

Sample Variance

0.02

9412.14

2840.47

662.06

1906.16

82148.19

61556.99

0.40

3.58

Kurtosis

1.64

0.06

6.99

18.97

2.71

− 0.38

− 1.18

12.64

10.99

Skewness

1.67

− 0.28

2.57

4.45

1.52

− 0.60

− 0.03

3.77

2.84

Range

0.55

452.89

250.00

135.00

220.00

1035.60

865.10

2.75

12.36

Minimum

0.22

187.11

0.00

0.00

0.00

0.00

273.90

0.00

0.46

Maximum

0.77

640.00

250.00

135.00

220.00

1035.60

1139.00

2.75

12.82