Table 3 Taguchi design matrix for the independent variables.

From: Identification of influential parameters and conditions in heavy metals adsorption onto Cal-LDH-PC using optimization approaches of RSM and Taguchi

Run

A

B

C

D

1

Level 1 of A

Level 1 of B

Level 2 of C

Level 2 of D

2

Level 1 of A

Level 2 of B

Level 2 of C

Level 2 of D

3

Level 2 of A

Level 3 of B

Level 3 of C

Level 2 of D

4

Level 2 of A

Level 1 of B

Level 2 of C

Level 3 of D

5

Level 2 of A

Level 2 of B

Level 3 of C

Level 3 of D

6

Level 2 of A

Level 3 of B

Level 1 of C

Level 2 of D

7

Level 3 of A

Level 1 of B

Level 2 of C

Level 2 of D

8

Level 3 of A

Level 2 of B

Level 2 of C

Level 3 of D

9

Level 3 of A

Level 3 of B

Level 2 of C

Level 2 of D

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