fitting a sum of two lognormal distributions to data.

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cgo
cgo 2017-10-5
评论： KSSV 2017-10-5
I have a data set (in the form of a histogram) with a first peak that appears near zero. The second, lower peak appear later.
A lognormal pdf is not enough for this kind, I believe, since there are two peaks. I want to use the sum of two lognormal pdf's (different mu and sigma). Please help me how to demonstrate this. Thanks

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