Table 8 RF mean prediction test errors and the associated standard errors for simulation with zero-inflated weight matrix

+∞

3 types

0.0072/0.0015

0.0062/0.0015

0.0046/0.0012

4

0.0054/0.0013

0.0026/0.0010

0.0042/0.0015

2

0.0048/0.0013

0.0058/0.0012

0.0044/0.0012

1

0.0068/0.0021

0.0056/0.0013

0.005/0.0012

+∞

6 types

0.0074/0.0013

0.0122/0.0021

0.0082/0.0018

4

0.009/0.0017

0.0118/0.0014

0.0066/0.0013

2

0.0112/0.0021

0.0148/0.0024

0.0076/0.0018

+∞

9 types

0.0102/0.0019

0.015/0.0024

0.0118/0.0023

4

0.011/0.0018

0.0168/0.0024

0.0104/0.0021

2

0.0104/0.0017

0.015/0.0030

0.0122/0.0028

1

0.01/0.0019

0.0126/0.0022

0.014/0.0026