Table 3 KPSS test p-values for GHI and covariates considered from each location.

From: Non-parametric quantile regression-based modelling of additive effects to solar irradiation in Southern Africa

Variable

Windhoek

Alice

Durban

Pretoria

Venda

GHI

0.0344

0.0100

0.0496

0.0100

0.0598

Hour

0.0214

0.0258

0.0744

0.0362

0.0100

Temp

0.0100

0.0097

0.0099

0.0100

0.0089

RH

0.0096

0.0100

0.0100

0.0095

0.0100

WS

0.0381

–

0.0530

0.0745

–

WD

–

0.0860

0.0634

–

–

BP

0.0098

–

–

–

–

Lag1

0.0354

0.0089

0.0493

0.0100

0.0586

Lag2

0.0364

0.0100

0.0488

0.0088

0.0570

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