Generation of an Odd numbers only

Hello every one I would like to generate a series of random odd numbers with in a specific range for example the range from 1 to 20 the odd number for example 1,3,5,7,9,11,13,15,17,19

Answer 1

[Star Strider]

My approach:

x = 1:20;
odv = x(rem(x,2)==1);
n = 10;                             % Length Of Series
oddrnd = odv(randi(length(odv),1,n));

[Image Analyst]

Almost the same as my code - you beat me to it:

oddNumbers = 1 : 2 : 19; % End at whatever number you want.
numbersToGenerate = 100; % Whatever you want.
values = oddNumbers(randi(length(oddNumbers), 1, numbersToGenerate))

[Star Strider]

I know that feeling only too well!

[aya]

It works fine but it gave me a matrix how can I get one value each time???????

[Star Strider]

To get one value each time, set:

n = 1;

[aya]

I was just trying that and it works thanx

[Star Strider]

My pleasure!

[David Barry]

Image Analyst's code is nicer. Star Strider seemed to forget you can create an odd array by using

1:2:20

[Star Strider]

I didn’t forget, and I considered the (2*n+1) possibility as well. I simply chose the most obvious solution.

[David Barry]

I would argue that 1:2:20 is more obvious and beginner friendly than your solution.

Answer 2

[Sameh elmedawi]

a = 1:2:2*n

Answer 3

[Guillaume]

How about?

(randi(10, 1, serieslength) - 1) * 2 + 1; %replace serieslength by actual length of series.

That is generate random integers between 0 and 9, multiply by 2 and add 1.

[aya]

its generate integers between 0:20? How I make generate randoms with in the values I that I want

[Guillaume]

It generates odd numbers between 1 and 19. It's not particularly hard to figure out how to do it for other ranges

halfrange = (maxrange - minrange) / 2; %replace max and min by actual values, values must be odd.
(randi(halfrange, 1, serieslength) - 1) * 2 + minrange;

Answer 4

[Noor elhamed]

How to write the code using user defined function?

Answer 5

[Gorret Komuhendo]

How do I find the MATLAB command which generate the following lists 1. The odd number 1,3,...99 2. The numbers 10,20,30,...120? Can you help me please

[Image Analyst]

v1 = 1 : 2 : 99
v2 = 10 : 10 : 120

Answer 6

[Chathurni Ratwatte]

Create the vector consisting of the whole odd numbers between 15 and 27

[Walter Roberson]

[17 19 21 23 25]

Answer 7

[FAISAL]

Create a scalar of an odd number

[Walter Roberson]

for K = 1 : 5
    scalar = randi([0 65535]) * 2 + 1
end

scalar = 120775

scalar = 130513

scalar = 43441

scalar = 97309

scalar = 26623