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edited Jul 26, 2018 at 14:42

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occurred Jul 26, 2018 at 9:00

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edited Jul 26, 2018 at 6:41

kglr

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Suppose I have a list:

l={{1,4},{2,4},{3,5},{4,6},{5,3},{6,2}}

How can I select the elements of the list in the second element is decreasing and first element of the list increasing? That is, I want '{{1,4},{2,4},{5,3},{6,2}'{{1,4},{2,4},{5,3},{6,2}?

I know there is a simple function in Mathematica to do this. But I cannot find it.

Suppose I have a list:

l={{1,4},{2,4},{3,5},{4,6},{5,3},{6,2}}

How can I select the elements of the list in the second element is decreasing and first element of the list increasing? That is, I want '{{1,4},{2,4},{5,3},{6,2}'?

I know there is a simple function in Mathematica to do this. But I cannot find it.

Suppose I have a list:

l={{1,4},{2,4},{3,5},{4,6},{5,3},{6,2}}

How can I select the elements of the list in the second element is decreasing and first element of the list increasing? That is, I want {{1,4},{2,4},{5,3},{6,2}?

I know there is a simple function in Mathematica to do this. But I cannot find it.

Copy edited - but more work is needed for the sentence containing "select the elements of the list in the second element is decreasing". Removed meta information (this belongs in comments).

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edit approved Jul 26, 2018 at 6:34

Peter Mortensen

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select Select the cases by comparing the second elements of the list

Suppose I have a list:

l={{1,4},{2,4},{3,5},{4,6},{5,3},{6,2}}, how

How can iI select the elements of the list in the second element is decreasing and first element of the list increasing? thatThat is, I want '{{1,4},{2,4},{5,3},{6,2}'?

I know there is a simple function in Mathematica to do this. But I cannot find it. If it is considered duplicate, Please mark it as duplicate.

select the cases by comparing the second elements of the list

Suppose I have a list

l={{1,4},{2,4},{3,5},{4,6},{5,3},{6,2}}, how can i select the elements of the list in the second element is decreasing and first element of the list increasing? that is I want '{{1,4},{2,4},{5,3},{6,2}'?

I know there is a simple function in Mathematica to do this. But I cannot find it. If it is considered duplicate, Please mark it as duplicate.

Select the cases by comparing the second elements of the list

Suppose I have a list:

l={{1,4},{2,4},{3,5},{4,6},{5,3},{6,2}}

How can I select the elements of the list in the second element is decreasing and first element of the list increasing? That is, I want '{{1,4},{2,4},{5,3},{6,2}'?

I know there is a simple function in Mathematica to do this. But I cannot find it.