>My question:
>In NCL, how do you random vectors (gaussian) with Lognormal distribution?
>How can I display a histogram of probability density function?
>
>I see the commands for cumulative distribution function. Can I create
>a pdf histogram of such data in NCL?
>
>Any suggestion would be greatly appreciated.
>_______________________________________________
>
NCL does not have a built-in function to generate
numbers with a log-normal distribution.
If you have the NAG math libraries available
you can use the G05DEF function to generate
a log-normal distribution.
--- On the other hand ... lognormal variables are those whose logarithms follow normal distributions. Seems to me that you could use random_normal to generate numbers with a normal distribution http://www.ncl.ucar.edu/Document/Functions/Built-in/random_normal.shtml av = 10.0 sd = 3.0 nor = random_normal(av, sd, (/100/)) ; nor(1000) then lognor = exp( nor ) ; lognormal <== exponetial(normal) ------ plot the lognor using histograms. http://www.ncl.ucar.edu/Applications/histo.shtml _______________________________________________ ncl-talk mailing list ncl-talk_at_ucar.edu http://mailman.ucar.edu/mailman/listinfo/ncl-talkReceived on Tue Sep 19 2006 - 14:40:05 MDT
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