Table 3 Regression model performance.

From: Comparative reliability assessment of PET and UTCI thermal comfort indices using Monte Carlo simulation in urban microclimates

Area

Model Type

R2

RMSE (°C)

Selected variables

S0

Polynomial

0.9994

0.85

Hour, Ta, RH, V, Tmrt, Ta2, Tmrt2

S1

Polynomial

0.9999

0.42

Hour, Ta, RH, V, Tmrt, interactions

S2

Linear

0.9993

0.46

Hour, Ta, RH, V, Tmrt

S3

Polynomial

0.9998

0.38

Hour, Ta, RH, V, Tmrt, Ta2, RH2

S4

Linear

0.9997

0.91

Hour, Ta, RH, V, Tmrt

S5

Polynomial

0.9999

0.33

Hour, Ta, RH, V, Tmrt, interactions