find whether an array contains an element

[MOI_maker]

Hi guys,

This seems like it should be really easy and obvious... but I want to search a number of 1D arrays for a particular element.

I want to output the other values in the array if the element is found, and nothing if it is not.

eg. Input:

1  2  3,

2  3  5,

5  3  7,

3  8  9

Search for: 5

Output:

2, 3, 7

Even a simple T/F output for each array would be ok, I could probably do the rest.

Thanks!

[JÞB]

Interesting!  That was a bit tougher than it looked at first.

I'm almost positive that this code will show up on the Rube-Goldberg Thread.   It works though.  (There almost has to be a way to do that in one loop)

[Neos]

Jeff second for loop where you are using equal function and again building the array of boolean.

Without for loop its same

[Yamaeda]

My solution, there's no removal of repeated numbers, i leave that to you.

/Y

[MOI_maker]

Here's my solution, based on both of yours above, and the fact that each row contains only 3 elements. (If anyone's interested I'm using it to find nearest neighbours in a Delaunay triangulation)

I tried to make it simpler... but I may have just Goldberged this even further...

Thanks guys!

[altenbach]

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MOI_maker wrote:

I tried to make it simpler... but I may have just Goldberged this even further...

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You know that "index array" is resizeable, right? 😄