Split an array following one column condition

[tnn]

Hi all,

I have a 2D array, and I would like to split this array into sub-arrays following 1st collum condition,

For example, the array is:

[1 a]

[2 b]

[1 c]

[2 a]

[2 e]

[3 h]

[5 t]

and we will need to split into  4 arrays below:

1st array:

[1 a]

[1 c]

2nd array:

[2 b]

[2 a]

[2 e]

3rd array: 

[3 h]

4th array:

[5 t]

and so on,...

Please see the picture,

Thanks for your help,

[Yamaeda · Accepted solution]

Sort by the 1st column and then cut when the 1st column change value.

[PalanivelThiruvenkadam]

Hi,

There are multiple ways to achieve, please find the one quick approach.

[tnn]

Hi, Yamaeda,

Thanks for your suggestion,

I have finished it following your recommendation,

[tnn]

Thanks for your prompt reply,

However, If I follow that, I still cannot split the array,

Anyway, thank for your advice.

[GerdW]

Hi tnn,

---

@tnn wrote:

However, If I follow that, I still cannot split the array,

---

It always helps to simplify a VI:

[GerdW · Accepted solution]

Hi tnn,

why can't you "split the array"?

Which error do you encounter?

Where are you stuck?

(Why did you need to use OpenG?)

Suggestion:

[altenbach · Accepted solution]

Here's what I would do (you can skip the sort if you want the output sorted by first appearance of the key):

To get each of the three grouped arrays, just index into the output and unbundle.

[tnn]

Thank you all for your help,

I'm very appreciative of your suggestion,

This topic can be closed!