random no.
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hi, can i get random no. in specific range ?
between 19 , -19
thanks
Antworten (4)
Image Analyst
am 18 Mär. 2012
You didn't read the help on rand(), did you? If you had, you would have seen the answer to your question as the very first example:
Example 1
Generate values from the uniform distribution on the interval [a, b]:
r = a + (b-a).*rand(100,1);
Needless to say, a=-19 and b = 19 in your case, and 100 is the number of random numbers to be generated, or:
r = -19 + 38 .* rand(100, 1);
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Jan
am 18 Mär. 2012
While the solution in easy, not to say trivial, the suggestion to read the documentation is an will be valuable. +1
the cyclist
am 18 Mär. 2012
Depending on whether you want to draw from a discrete or a continuous distribution, you will likely want to use either the randi() or unifrnd() function.
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Sahyadri Vibhu
am 20 Mär. 2012
As Sean Lawson said in the above comment, using -19+38*rand will generate a random real number in the range (-19 19)
to generate random integers use
randi ([lower_limit upper_limit],a,b,c...)
which generates an axbxcx..... random integer array in the range (lower_limit upper_limit)
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