Hi everyone,
I was training SPCE models using an existing dataset and encountered the following error. The error does not always occur, most of the time, it works when I change the training set. It appears to happen after the coefficient calculation. What could be the possible causes?
--- Calculating the stochastic polynomial chaos expansion by regression... ---
The construction of SPCE stopped at latent variable of type Gaussian with
parameters [ 0.0 1.0 ] polynomial degree 5 and qNorm 1.00 for output variable 1
Final CV score: -1.807380e+02
--- Calculation finished! ---
Error using uq_eval_univ_basis (line 46)
Index in position 1 exceeds array bounds. Index must not exceed 4.
Error in uq_PCE_eval_unipoly (line 33)
univ_p_val = uq_eval_univ_basis(U, BasisParameters);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in uq_PCE_eval (line 84)
univ_p_val = uq_PCE_eval_unipoly(current_model, U(:,nonConstIdx));
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in uq_eval_uq_metamodel (line 10)
[varargout{1:nargout}] = uq_PCE_eval(current_model,X);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in uq_evalModel (line 100)
[varargout{1:nargout}] = current_model.eval(current_model,varargin{:});
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in uq_SPCE_LatentPCECoeff (line 42)
coefZ = uq_evalModel(PCECoef,X)';
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in uq_SPCE_evalModelSampleMetrics (line 139)
[coefZ,Zdegree] = uq_SPCE_LatentPCECoeff(mySPCE,X,oo);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in uq_evalStochSimMetrics (line 6)
metrics = uq_SPCE_evalModelSampleMetrics(module,X,Y,varargin);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in uq_initialize_uq_metamodel (line 493)
metrics=uq_evalStochSimMetrics(current_model,VSet.X,VSet.Y);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in uq_core_module/run_initialization_script (line 201)
initHandle(obj);
^^^^^^^^^^^^^^^^
Error in uq_core_model/add_module (line 91)
success = this.run_initialization_script(obj);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in uq_createModel (line 107)
eval(str);
^^^^^^^^^^