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t1pdist
2013 Mar 10
1
Error with grad() for numerical differential of a function
...mmed some simulated studies. I have testes with 72,576 different combinations of the initial values and now I got an error in only 4 situations.
The error comes from the function grad() and I don't understand why. This is the output:
Error in grad.default(Sstar, x = t, dist1 = T1pdist, dist2 = T2pdist, :
function returns NA at 3.90625e-071.01927622979798e-087.7105723770202e-075.27096223871154e-087.28540377612885e-071.25230637383194e-076.56019362616806e-072.21329924168263e-075.59920075831737e-073.324709613353e-074.487790386647e-070.0001000016964206937.79553579306956e-072.72822299391765e-087.5...