cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • New to JMP? Join us Sept. 23-24 for the Early User Edition of Discovery Summit, tailor-made for new users. Register now for free!
  • Your voice matters! Tell us how you prefer to receive JMP updates, so we can tailor our communication to your needs. Take short survey.
  • See how to access JMP Marketplace - and - find, create & share add-ins to extend your JMP. Watch video.

Discussions

Solve problems, and share tips and tricks with other JMP users.
Choose Language Hide Translation Bar
lwx228
Level VIII

Which JMP function can generate a non-repeating integer between two values?

I tried “Random Integer()”, but it produces duplicate integers. Thanks!

2 ACCEPTED SOLUTIONS

Accepted Solutions
txnelson
Super User

Re: Which JMP function can generate a non-repeating integer between two values?

I do not believe there is such a function in JMP, but it is very simple to create one

Names Default To Here( 1 );

uniqueRandomInteger = Function( {n, min, max},
	{defaultlocal},
	hold = [];
	For( i = 1, i <= n, i++,
		val = Random Integer( min, max );
		While( N Rows( Loc( hold, val ) ) > 0,
			val = Random Integer( min, max )
		);
		hold = hold |/ Matrix( val );
	);
	hold;
);

x=uniqueRandomInteger(10,100,200)
Jim

View solution in original post

gzmorgan0
Super User (Alumni)

Re: Which JMP function can generate a non-repeating integer between two values?

@lwx228 ,

 

This is just an alternate method relying on the JMP function Random Shuffle

Names Default to Here(1);

ibeg = 257;

iend = 500;

random_all = As List( Random Shuffle( Transpose(ibeg::iend) ) );

//suppose you only want 100

vals = random_all[1::100];

show(random_all, nitems(random_all), iend-ibeg+1 );

show(vals, nitems(vals));

I felt like a slacker, given Jim's elegant function. [grin] The attached script includes a function that uses this range/shuffle/subset  method.  Jim, @txnelson,  your function name was spot on, so I used it.

 

 'Imitation is the sincerest form of flattery that mediocrity can pay to greatness.' - Oscar Wilde

  

View solution in original post

3 REPLIES 3
txnelson
Super User

Re: Which JMP function can generate a non-repeating integer between two values?

I do not believe there is such a function in JMP, but it is very simple to create one

Names Default To Here( 1 );

uniqueRandomInteger = Function( {n, min, max},
	{defaultlocal},
	hold = [];
	For( i = 1, i <= n, i++,
		val = Random Integer( min, max );
		While( N Rows( Loc( hold, val ) ) > 0,
			val = Random Integer( min, max )
		);
		hold = hold |/ Matrix( val );
	);
	hold;
);

x=uniqueRandomInteger(10,100,200)
Jim
gzmorgan0
Super User (Alumni)

Re: Which JMP function can generate a non-repeating integer between two values?

@lwx228 ,

 

This is just an alternate method relying on the JMP function Random Shuffle

Names Default to Here(1);

ibeg = 257;

iend = 500;

random_all = As List( Random Shuffle( Transpose(ibeg::iend) ) );

//suppose you only want 100

vals = random_all[1::100];

show(random_all, nitems(random_all), iend-ibeg+1 );

show(vals, nitems(vals));

I felt like a slacker, given Jim's elegant function. [grin] The attached script includes a function that uses this range/shuffle/subset  method.  Jim, @txnelson,  your function name was spot on, so I used it.

 

 'Imitation is the sincerest form of flattery that mediocrity can pay to greatness.' - Oscar Wilde

  

Re: Which JMP function can generate a non-repeating integer between two values?

And another way:

 

Names Default to Here( 1 );

random order = Function( { min, max },
	min = Floor( min ); max = Floor( max );
	Index( min, max )[Rank( J( max-min+1, 1, Random Uniform() ) )];
);

Show( random order( 5, 10 ) );

Recommended Articles