Dear R users,
I have a question about numerical integration in R.
I am facing the 'non-finite function value' error while integrating the
function
xf(x)
using 'integrate'. f(x) is a probability density function and assumed to
follow the three parameter (min = 0) beta distribution for which I have
estimated the parameters. The function is integrated over two ranges, say
(0, a) and (a, Inf). The error 'non-finite function value' happens when I do
the integration for the second range. I have 10 different density functions
for 10 different data series and for some of them replacing Inf by the Max
of f(x) gives me an estimate of the area while for others this doesn't work.
What does the error mean and how can I address it? Is replacing a max for
Inf appropriate?
I really appreciate any clues.
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