generate a random number

Hi,I need to generate a random number distribution that has different weights. For example: I want to generate 1000000 numbers with 80% of the generated values being less than 5. How do I do this?

[Stephen23]

@igc1127: what distribution do you want? There are many distributions that could fulfill this requirement.

Answer 1

[Image Analyst]

Is this what you want? Try this:

n = 1000000; % Number of random numbers you want to generate.
maxValue = 5  % Number that you want to specify some percentage of numbers are less than.
percentage = 80; % Range is 0 to 100
newMaxValue = maxValue * 100 / percentage
% Compute random numbers.
r = newMaxValue * rand(1, n);
% Compute percentage under maxValue
pct = sum(r < maxValue) / n * 100
% Plot it.
histogram(r, 'Normalization', 'pdf');
grid on;