    % LMNTool demo 4. static process with 2 inputs and 2 outputs

    % LMNTool - Nonlinear System Identification Toolbox
    % Institute of Mechanics & Automatic Control
    % University of Siegen, Germany
    % Copyright (c) 2015 by Prof. Dr.-Ing. Oliver Nelles et. al.

    % generate input data on a grid
    [u1g, u2g] = meshgrid(linspace(0,1,25), linspace(0,1,25));
    u1 = u1g(:);
    u2 = u2g(:);
    input = [u1 u2];

    % define two outputs (two different hyperbolas)
    y1 = (1./(0.1+u1) + (2*u2).^2)/14;
    y2 = 0.1./(0.1+(1-u1)/2+(1-u2)/2);

    % add some noise
    rng(42,'twister');
    y1 = y1 + 0.05*randn(size(y1))*(max(y1)-min(y1));
    y2 = y2 + 0.05*randn(size(y2))*(max(y2)-min(y2));
    output = [y1 y2];

    % start training
    % note that even if neither validation nor test data is available, you have
    % to pass empty vectors. Output indices refer to the columns of the first
    % input argument of the LMNTrain function.
    [LMNBest, AllLMN] = LMNTrain([input output],[],[],'outputidx',[3 4]);

    Current training method: lolimotQuad

    Current training method: lolimotSparseQuad

    Current training method: lolimot

    Current training method: hilomotSparseQuad
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)

    Current training method: hilomot
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)

    Current training method: hilomotQuad
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)
    Warning: Optimization aborted. Parameters are set to initial values!
    > In hilomot/LMSplitOpt (line 105)
      In hilomot/train (line 229)
      In parallel_function>make_general_channel/channel_general (line 914)
      In remoteParallelFunction (line 38)

    Suggested model: lolimotQuad
    Warning: Ignoring extra legend entries.