Naming csv header

[horsto]

I am trying to rename zipped values so that they carry explicit descriptions in the header of a .csv file that I am writing after the output of the workflow (see screenshot), instead of just being named Item1. .... I am trying to use an Expression Transform for this, but this runs into the exception "Build Error: Expression expected". What is the correct way of doing this?

[bruno-f-cruz]

Try to remove the last comma.

[horsto]

That did the trick, thanks!

[horsto]

Random follow-up question: The Zip: Is that limited in how many values it can combine at once? I noticed that at a certain number of inputs it changes the format from System.Tuple <float, float ,....> (in my case) to something list / float.

[bruno-f-cruz]

Tuples are currently limited to 7 elements.

[horsto]

Thanks. Any spontaneous trick / idea on how to deal with combining > 10 values into one output for the csvwriter ? (python transform?)

[bruno-f-cruz]

Tuples of tuples should do the trick.