selecting a random value within a specific interval

Hello,

vmin=0.90;

vmax=1.15;

How can I select a random value between 0.90 and 1.15?

Thx!

Answer 1

[Image Analyst]

Did you look up rand() in the help? It's one of the examples:

Random Numbers Within Specified Interval
Generate a 10-by-1 column vector of uniformly distributed numbers in the interval [-5,5].

r = -5 + (5+5)*rand(10,1)
r =

      3.1472
      4.0579
     -3.7301
      4.1338
      1.3236
     -4.0246
     -2.2150
      0.4688
      4.5751
      4.6489
  In general, you can generate N random numbers in the interval [a,b] with the formula r = a + (b-a).*rand(N,1);.

[Youssef Khmou]

for normal distribution, it requires other definition.

[Guillaume]

Yes, but the OP never mentioned normal, so the assumption is they want a uniform distribution.

[Image Analyst]

If a normal distribution is wanted, use randn(). Other related functions are also found at the bottom of the help in the "See Also" section.