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...ge in the results. The only way I've found to suppress overfitting is to set the basis dimension "k" at very low values (3 to 5). However, I don't think this is reasonable because knots selection will then be an important issue. Is there any other means to avoid overfitting when alalyzing small datasets? Thank you for your help in advance, Ariyo Kanno -- Ariyo Kanno 1st-year doctor's degree student at Institute of Environmental Studies, The University of Tokyo