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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Ann Inst Stat Math. 2013 Jun 16;66(1):1–31. doi: 10.1007/s10463-013-0415-z

Table 4.

Boston housing data and body fat data results

Boston housing data body fat data
Methods MSPE cov(y) L corr(Ytest, Ypred)a MSPE cov(y) L corr(Ytest, Ypred)
P1 0.0012 0.99 0.0034 0.9894 0.0055 1 0.0020 0.9972
P2a 0.0013 0.99 0.0027 0.9901 0.0031 1 0.0017 0.9984
P2b 0.0016 0.99 0.0020 0.9863 0.0029 1 0.0017 0.9989
P2c 0.0014 0.99 0.0030 0.9879 0.0034 1 0.0019 0.9969
P2d 0.0013 0.99 0.0029 0.9881 0.0032 1 0.0018 0.9975
M-Estimation 0.0016 0.9858 0.0375 0.9710
BART 0.0024 0.92 0.9836 0.0355 0.95 0.9655
Treed GP 0.0053 0.91 0.9524 0.1526 0.98 0.9250
a

corr(Ytest, Ypred) denotes the sample correlation between the test and predicted y