Concatenating column values

Hi,

I’ve got a table from the the Topic Extractor (paralled LDA) node:

Term Topic id

a          topic_0

b          topic_0

c          topic_1

d          topic_1

e          topic_1

I'd like to have a table like this:

Topic id           Term list

topic_0           a, b

topic_1           c, d, e

Any suggestion is welcome.

Thanks!

Alfredo

Try the GroupBy node, grouping on the "Topic id" column with "List" as aggregation function on the "Term" column.

Thank you very much, Thor!

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