cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Instantly extract effect sizes, F-ratios, and FDR-adjusted p-values from your models with the Calculate Effects Sizes extension, available now in the JMP Marketplace!
  • 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.

Discussions

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

Break/Continue a (nested) outer for loop

If I have 2 nested for-loops, how can I break/continue the outer loop?

example:

for (i=0, i<10, i++,

     for (j=0, j<10, j++,

          // Do stuff

         if ( <condition>,

               // Continue with the next i

          ); // end if

    ); // end inner loop

    

     // Do some more stuff

); // end outer loop

1 ACCEPTED SOLUTION

Accepted Solutions
ron_horne
Super User (Alumni)

Re: Break/Continue a (nested) outer for loop

hi Jan,

try to use the Break(). the following script will stop running when i will reach 3.

For( i = 0, i <= 5, i++,

    For( z = 0, z < 5, z++,

    if (i >= 3, Break());

        Print( "i=" || Char( i ) || " & z=" || Char( z ) )

    )

);

the next script will just skip i=3 and continue to i=4 and i=5.

For( i = 0, i <= 5, i++,

    For( z = 0, z < 5, z++,

    if (i== 3, Break());

        Print( "i=" || Char( i ) || " & z=" || Char( z ) )

    )

);

please take a look at this link for the explanation about the use Break and while:

Iterate

ron

View solution in original post

3 REPLIES 3
ron_horne
Super User (Alumni)

Re: Break/Continue a (nested) outer for loop

hi Jan,

try to use the Break(). the following script will stop running when i will reach 3.

For( i = 0, i <= 5, i++,

    For( z = 0, z < 5, z++,

    if (i >= 3, Break());

        Print( "i=" || Char( i ) || " & z=" || Char( z ) )

    )

);

the next script will just skip i=3 and continue to i=4 and i=5.

For( i = 0, i <= 5, i++,

    For( z = 0, z < 5, z++,

    if (i== 3, Break());

        Print( "i=" || Char( i ) || " & z=" || Char( z ) )

    )

);

please take a look at this link for the explanation about the use Break and while:

Iterate

ron

jan_solo
Level III

Re: Break/Continue a (nested) outer for loop

Thank you for the answer.

It's not completely what I am looking for.

Consider this:

For( i = 0, i <= 5, i++,

    For( z = 0, z < 5, z++,

    if (i== 3, Break());

        Print( "i=" || Char( i ) || " & z=" || Char( z ) )

    );

  

    Print ( "OUTER i = " || Char (i));

  

);

If I run this script, outer i is printed.  The real problem here is to 'continue with the next i', without the second print-line (OUTER i = ...) will be printed.  Is there an easy way to do, or do I just have to use a boolean 'continueOuterLoop'?

Thanx.

Boolean solution:

For( i = 0, i <= 5, i++,

   

    continueOuterLoop = 0;

   

    For( z = 0, z < 5, z++,

    if (i== 3, continueOuterLoop = 1; Break(); );

       

        Print( "i=" || Char( i ) || " & z=" || Char( z ) )

    );

   

   

    if (continueOuterLoop == 0,

        Print ( "OUTER i = " || Char (i))

        )

   

);

jwiltsie
Level III

Re: Break/Continue a (nested) outer for loop

Hi Jan, Couldn't you just add an i++ instead of Break() during the inner For loop? 

You could also set z=0 after i++, if you wanted it to restart the inner For loop without going into the outer For loop.

 

For example:

 

For( i = 0, i <= 5, i++,
    For( z = 0, z < 5, z++,
		if (i== 3,
			Print( "i=" || Char( i ) || " & z=" || Char( z ) );
			i++; // I put the i++ after the print so that it prints i=3
		);
	);
    Print ( "OUTER i = " || Char (i));
);

 

 

 

 

Recommended Articles