feedforwordnet generate various performace for the same neuros

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yuyyy hygu
yuyyy hygu 2017-1-22
i have 22 features for 50 images (25 benigne and 25 malignant) i tried to classify them by nn and (feedforowardnet) command ,my problem is when i determine the number of neurons (15) get accuracy 90% and mse .09, when i repeate the command ,by the same neuons (15) the results was chaged completely (accuracy 92) and mse .1 ,i wana know what the wrong is thanks

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