how to calculate the probability of a lognormal distribution in matlab

To calculate the probability of a lognormal distribution in MATLAB, you can use the logncdf function. The logncdf function returns the cumulative distribution function (CDF) of the lognormal distribution for a given set of parameters.

main.m
% Define the parameters of the lognormal distribution
mu = 1;
sigma = 0.2;

% Define the range of x values for which to calculate the probability
x = 0:0.1:5;

% Calculate the probability of the lognormal distribution for each value of x
p = logncdf(x, mu, sigma);

% Plot the probability distribution function (PDF)
plot(x, p);
title('Lognormal Probability Distribution Function');
xlabel('X');
ylabel('Probability');
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In the above code, we first define the parameters of the lognormal distribution (mu and sigma). We then define a range of values x for which we want to calculate the probability of the lognormal distribution. We use the logncdf function to calculate the cumulative distribution function (CDF) of the lognormal distribution for each value of x. Finally, we plot the probability distribution function (PDF) using the plot function.