> ddata.nn = nnet(flag~.,data = trainset,size = 2,rang = 0.1,decay = 5e-4,maxit = 10000)
# weights: 23
initial value 109.214912
iter 10 value 101.275553
iter 20 value 101.180860
iter 30 value 98.002601
iter 40 value 95.767497
iter 50 value 95.585913
iter 60 value 95.522800
iter 70 value 95.491322
iter 80 value 95.484185
final value 95.482472
converged
请问以上代码运行结果中的converged是什么意思?