N 12 A n 1n

which implies the formula for a homogeneous I-process:

n2 n1

2x2m2 ,

where mk = uk v(u) du (k > 1). From here we obtain

2x2m2

Analysis of this function of n shows that it can have a local maximum in the neighborhood of the point n = 2 (for x > mA/m2), and after this point it decreases monotonically till the meaning mA/x. Because the gain in precise is negligible when n rises, one should take into account another considerations, for example, rate of computing, which is the more, the less n.

Soft ware

In Laboratory of Reliability Analysis Methods of Institute of Problems of Mechanical Engineering of Russian Academy of Sciences there are programs permitting to find estimates of parameters of inverse gamma processes for different methods wear data gathering.

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