Help with random in Matlab 2007b

Hi, I need to take a value. The string can be from 1 to 10 billion for example, doesn't matter how many values are there, I need to take just 1 that is completely random.

I have tried randi and randsample and they are not working, can you please point me in the right direction ?

Thank you!

Answer 1

[Matt Fig]

Those functions did not exist in ver 2007b. Use this:

% Create a random number drawn from 1 to 10
A = ceil(rand*10);

You can also write your own version of the RANDI function if you need to do so.

[Cristian]

I don't need my own function, I just have to take a simple number. Thank you, will try it.

[Image Analyst]

Then just do this:

myRandomNumber = uint64(ceil(1e10*rand))

note that you'll need uint64 data class to get integers more than about 4.29 billion because

>> intmax('uint32')
ans =
  4294967295
>> intmax('uint64')
ans =
 18446744073709551615

and any numbers that you use that integer with will also have to be uint64 also.