Could anyone help me how to solve the following issue.

I am using the command line

randi([1,5], 1, 10)

to generate numbers with respect to single row versus 10 columns.

when i run the command sometimes it generates all 5 numbers with respect to single row versus 10 columns in the following manner

3 1 2 1 1 4 4 5 2 5

sometimes it doesnt and i am getting the result as follows:

4 1 5 5 5 1 1 2 2 4(number 3 is missing)

But for me i want to have all 5 number every time when the command executes.Could anyone please help me on this.

[Rik]

Come on Jaah, you must have tried something already. This is not your first question. Show your attempt.

[jaah navi]

I tried with the command randi([1,5], 1, 10) as i am unable to get the required result i posted the question.

Answer 1

[Rik]

I can't think of a better solution, but you could try brute-forcing it with a while loop:

maxval=5;cols=10;
if maxval>cols
    error('impossible combination')
end

result=randi(maxval,1,cols);
val_list=1:maxval;
while ~all(ismember(val_list,result))
    result=randi(maxval,1,cols);
end

[jaah navi]

thanks.it works.

Answer 2

[Renato SL]

From

help randi

you will get the following:

R = randi([IMIN,IMAX],...) returns an array containing integer
    values drawn from the discrete uniform distribution on IMIN:IMAX.

Since the numbers are drawn with uniform distributions, I don't think randi is what you should use. One clue is given in later lines:

The arrays returned by randi may contain repeated integer values.  This
    is sometimes referred to as sampling with replacement.  To get unique
    integer values, sometimes referred to as sampling without replacement,
    use RANDPERM.
    

Perhaps try using randperm instead to have all 5 numbers everytime the command executes, as you expect.

PS.

Maybe this is not the most efficient answer, but try using this line:

[randperm(5,1) randperm(5,2) randperm(5,3) randperm(5,4)]

Answer 3

[KSSV]

[randi([1,5], 1, 5) randi([1,5], 1, 5)]

[Rik]

This is not guaranteed to contain all numbers 1:5.

[jaah navi]

Ok.For repeating 5 numbers with respect to 10 columns i can use your command.

But if i need to repeat 100 numbers with respect to 300 columns i am unable to use the above command.

So i need to have to a common command which gets executed for all possibilities

Could you please help me on this.