Lognormal distribution between a specific range

Dennis · Apr 21, 2022 · 1.9K views
Question
Hello, I am trying to create a lognormal distribution using the 'lognrnd' command between 3000 and 10000 I want the distribution to be skewed to the right as that is the characteristic of lognormal distributions.   I attempted several times to create the distribution using the mean and the standard deviation of the associated normal distribution spread between 3000 &10000 but when I plot the histogram of the generated lognormal distribution, the distribution still looks like a normal distribution without skewness.    
Expert Answer
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Neeta Dsouza PhD Expert
Answered Aug 25, 2026

Here is some code that does roughly what you asked for.

 

r = lognrnd(8.6,0.2,100000,1);
figure
histfit(r);
skewness(r)

The red curve is the normal curve fit to the randomly generated data. The skew is evident, with a skewness of about 0.6.

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