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  • JMP Security Notice: CVE-2026-109618 and CVE-2026-109619

    JMP promptly initiated a review of its products, services, and relevant infrastructure for exposure to CVE-2026-109618 and CVE-2026-109619.

    Our assessment of JMP products has not identified exposure to these vulnerabilities. Where remediation was required within supporting environments, appropriate security updates and controls have been applied and validated.

    We have identified no evidence of successful exploitation or unauthorized access to JMP systems or customer information associated with these vulnerabilities.

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Discussions

Solve problems, and share tips and tricks with other JMP users.
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Neo
Neo
Level VII

How to remove duplicate entries from a list?

Nov 9, 2023 12:02 PM (3762 views)

If I have a list like

myList  = {"John", "Dan", "Rob", "Rob", "Matt", "Shane", "Matt", "Shane", "John"};

How do I get a list with duplicate entries removed ?

myList_new= {"John", "Dan", "Rob", "Matt", "Shane"};

 

When it's too good to be true, it's neither
0 Kudos
1 ACCEPTED SOLUTION

Accepted Solutions
jthi
Super User jthi
Super User
Solution

Re: How to remove duplicate entries from a list?

Nov 9, 2023 12:09 PM (3760 views)  |  Posted in reply to message from Neo 11-09-2023

If it doesn't matter that order changes you can use associative array

Names Default To Here(1);

myList  = {"John", "Dan", "Rob", "Rob", "Matt", "Shane", "Matt", "Shane", "John"};
my_list = Associative Array(myList) << get keys;
-Jarmo

View solution in original post

2 REPLIES 2
jthi
Super User jthi
Super User
Solution

Re: How to remove duplicate entries from a list?

Nov 9, 2023 12:09 PM (3761 views)  |  Posted in reply to message from Neo 11-09-2023

If it doesn't matter that order changes you can use associative array

Names Default To Here(1);

myList  = {"John", "Dan", "Rob", "Rob", "Matt", "Shane", "Matt", "Shane", "John"};
my_list = Associative Array(myList) << get keys;
-Jarmo
hogi
hogi
Level XIII

Re: How to remove duplicate entries from a list?

Nov 9, 2023 12:33 PM (3755 views)  |  Posted in reply to message from jthi 11-09-2023

Unfortunately, Associative Arrays get slow if the list is long.

 

There are other approaches like Summarize and Tables/Summary which are way faster.

So, sometimes it could make sense to create a data table, fill a new column with the list values and use the fast table functions.

 

Best:
go to Provide fast way to get unique values from JMP objects (column, lists), possibly similar to Python's...  and support @jthi 's wish with a Kudo :)

 

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