Table 2 Comprehensive statistics for both testing and training data related to TS-BPC.

From: Predicting workability and mechanical properties of bentonite plastic concrete using hybrid ensemble learning

Statistic

Gravel

Sand

Silty clay

Cement

Bentonite

Water

Curing time

Tensile strength

Training data: 80

Minimum

295

590

0

50

18

152.1

28

0.06

Maximum

875

1305

350

252

320

500

180

1.3

Mean

625.9

851.8

144.5

142.2

69.7

351.5

59.2

0.3

Median

673.5

775

180

130

58

370

28

0.2

Standard deviation

192.5

253.5

109.4

45.2

43.9

78.6

38.6

0.2

Variance

37072.2

64308.6

11973.8

2043.6

1927.8

6191.2

1492.5

0.07

Skewness

−0.7

1

−0.3

0.7

2.7

−1

1.1

1.4

Kurtosis

−0.7

−0.5

−1.3

0.3

12.5

0.6

1.2

1.7

Testing data: 35

Minimum

295

524

0

72

18

152.1

28

0.08

Maximum

875

1305

380

224

168

481.4

90

1

Mean

670.8

816.9

144

132.9

67.3

328.4

59.8

0.4

Median

710

766

180

120

70

340.4

90

0.3

Standard deviation

184.6

237.8

123

34.6

37

78.3

31.4

0.2

Variance

34082.4

56593.8

15137.9

1201.2

1374.3

6142.7

988.4

0.07

Skewness

−1.1

1.2

0.05

1.1

1.2

−0.4

−0.05

0.6

Kurtosis

0.1

0.3

− 0.1.1

1

1.6

−0.3

−2.1

−1