How can I multiply variables by a random variable with lognormal distribution?

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Uriel Clark 2016-9-19

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回答： John D'Errico 2016-9-19

I need to put in the equation: Fu = (Fv + Fs + bi)E where E is a random variable with lognormal distribution that has a logarithmic mean of 0 and SD of -0.08. I'm not sure how I can multiply the other variables by E.

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Adam 2016-9-19

在 MATLAB Online 中打开

If you have the Statistics Toolbox:

doc lognormal

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Answer 1

John D'Errico 2016-9-19

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If you are asking how to multiply a variable by a SAMPLED random variable, then the function lognrnd (stats TB) will do what you wish, to sample from that variable.

If you are asking how to specify that an effectively symbolic variable E (with unknown value) be lognormally distributed, then sorry, you cannot do so.