Hi, I have a problem with classification by neural net in ENVI. I need to classify SPOT with 4bands and I have 5 ROIs classes(forest, water, ...) If I choose Maximum Likelihood, everything is OK and perfect. But I have to make a comparison Maximum Likelihood and Neural Nets Classification.But the Neural Nets reports an error: envi_neural_net_doint: An error has occured during processing Error:"Attempt to subscript with K is out of range." The result may be invalid. My parametr settings: Activation: Logistic Training Threshold Contribution: 0.9 Training rate: 0.15 Training momentum: 0.9 Training RMS Exit Criteria: 0.1 Number of Hidden Layers: 1 Number of Training Iteration: 1000 Min Output Activation Threshold - I tried 0 and also 0.000 000 001 but the result is always the same - error... Thank you all for your advice!!! Veronika