Hello everybody,
I am trying to extract the data in an orderly way. I am getting an MQTT variable (Topic) containing information and I am breaking it down into chunks(Deconstruccion). I already have the dataset with the fragments and now I would like to take out the first fragment. I have seen in the manual that they use a table and things like that but I don’t see the way to do it direcly with a script. Can you help me?
Hi @OscarLucas, have you seen the following: Datasets - Ignition User Manual 8.1 - Ignition Documentation
You should just be able to read the value of the tag and then iterate/get the desired item in the dataset 
I have tried this way but it always gives error. The point is that I have an array as a return from the split command. I have no name table and headers.
I have done something for you to see what I have tried with his example.
Ah right, would you like to pull the individual items into other tags? You can use the lookup expression function to do this: lookup - Ignition User Manual 8.1 - Ignition Documentation
I thought you were trying to pull it into a view for display, sorry 
Also as a side note, the original dataset information I linked was for scripting in python. You are using the expression language which is why it is giving you a configuration error.
I apologise, I have just realised you don’t have anything to search on (don’t use lookup)!
Right the correct way to access a dataset if you know what column/row you need is to use:
{[.]New tag 1}[row, col]
Information on this can be found: Expression Language and Syntax - Ignition User Manual 8.1 - Ignition Documentation
If you wanted the first row in the first column, you would use: {[.]New tag 1}[0, 0]
Or you could use: {[.]New tag 1}[0, "parts"]
Sorry again, I’m not on form today (if I ever am 
)
It was easier than expected.
Thanks
Yep, got there in the end. Sorry again for taking you the long route